#include "postgres.h"
#include "catalog/pg_collation.h"
#include "catalog/pg_type.h"
#include "executor/execExpr.h"
#include "funcapi.h"
#include "miscadmin.h"
#include "nodes/miscnodes.h"
#include "nodes/nodeFuncs.h"
#include "regex/regex.h"
#include "utils/builtins.h"
#include "utils/date.h"
#include "utils/datetime.h"
#include "utils/float.h"
#include "utils/formatting.h"
#include "utils/jsonpath.h"
#include "utils/lsyscache.h"
#include "utils/memutils.h"
#include "utils/timestamp.h"

Include dependency graph for jsonpath_exec.c:

Data Structures
struct	JsonBaseObjectInfo

struct	JsonPathExecContext

struct	JsonLikeRegexContext

struct	JsonValueList

struct	JsonValueListIterator

struct	JsonTablePlanRowSource

struct	JsonTablePlanState

struct	JsonTableExecContext

Macros
#define	jperIsError(jper) ((jper) == jperError)

#define	JSON_TABLE_EXEC_CONTEXT_MAGIC 418352867

#define	jspStrictAbsenceOfErrors(cxt) (!(cxt)->laxMode)

#define	jspAutoUnwrap(cxt) ((cxt)->laxMode)

#define	jspAutoWrap(cxt) ((cxt)->laxMode)

#define	jspIgnoreStructuralErrors(cxt) ((cxt)->ignoreStructuralErrors)

#define	jspThrowErrors(cxt) ((cxt)->throwErrors)

#define	RETURN_ERROR(throw_error)

Typedefs
typedef struct JsonBaseObjectInfo	JsonBaseObjectInfo

typedef JsonbValue (	JsonPathGetVarCallback) (void vars, char varName, int varNameLen, JsonbValue baseObject, int baseObjectId)

typedef int(*	JsonPathCountVarsCallback) (void *vars)

typedef struct JsonPathExecContext	JsonPathExecContext

typedef struct JsonLikeRegexContext	JsonLikeRegexContext

typedef enum JsonPathBool	JsonPathBool

typedef enum JsonPathExecResult	JsonPathExecResult

typedef struct JsonValueList	JsonValueList

typedef struct JsonValueListIterator	JsonValueListIterator

typedef struct JsonTablePlanRowSource	JsonTablePlanRowSource

typedef struct JsonTablePlanState	JsonTablePlanState

typedef struct JsonTableExecContext	JsonTableExecContext

typedef JsonPathBool(*	JsonPathPredicateCallback) (JsonPathItem jsp, JsonbValue larg, JsonbValue rarg, void param)

typedef Numeric(*	BinaryArithmFunc) (Numeric num1, Numeric num2, bool *error)

Enumerations
enum	JsonPathBool { jpbFalse = 0 , jpbTrue = 1 , jpbUnknown = 2 }

enum	JsonPathExecResult { jperOk = 0 , jperNotFound = 1 , jperError = 2 }

Functions
static JsonPathExecResult	executeJsonPath (JsonPath path, void vars, JsonPathGetVarCallback getVar, JsonPathCountVarsCallback countVars, Jsonb json, bool throwErrors, JsonValueList result, bool useTz)

static JsonPathExecResult	executeItem (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, JsonValueList found)

static JsonPathExecResult	executeItemOptUnwrapTarget (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, JsonValueList found, bool unwrap)

static JsonPathExecResult	executeItemUnwrapTargetArray (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, JsonValueList found, bool unwrapElements)

static JsonPathExecResult	executeNextItem (JsonPathExecContext cxt, JsonPathItem cur, JsonPathItem next, JsonbValue v, JsonValueList *found, bool copy)

static JsonPathExecResult	executeItemOptUnwrapResult (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, bool unwrap, JsonValueList found)

static JsonPathExecResult	executeItemOptUnwrapResultNoThrow (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, bool unwrap, JsonValueList found)

static JsonPathBool	executeBoolItem (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue *jb, bool canHaveNext)

static JsonPathBool	executeNestedBoolItem (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue *jb)

static JsonPathExecResult	executeAnyItem (JsonPathExecContext cxt, JsonPathItem jsp, JsonbContainer jbc, JsonValueList found, uint32 level, uint32 first, uint32 last, bool ignoreStructuralErrors, bool unwrapNext)

static JsonPathBool	executePredicate (JsonPathExecContext cxt, JsonPathItem pred, JsonPathItem larg, JsonPathItem rarg, JsonbValue jb, bool unwrapRightArg, JsonPathPredicateCallback exec, void param)

static JsonPathExecResult	executeBinaryArithmExpr (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, BinaryArithmFunc func, JsonValueList found)

static JsonPathExecResult	executeUnaryArithmExpr (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, PGFunction func, JsonValueList found)

static JsonPathBool	executeStartsWith (JsonPathItem jsp, JsonbValue whole, JsonbValue initial, void param)

static JsonPathBool	executeLikeRegex (JsonPathItem jsp, JsonbValue str, JsonbValue rarg, void param)

static JsonPathExecResult	executeNumericItemMethod (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, bool unwrap, PGFunction func, JsonValueList found)

static JsonPathExecResult	executeDateTimeMethod (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, JsonValueList found)

static JsonPathExecResult	executeKeyValueMethod (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, JsonValueList found)

static JsonPathExecResult	appendBoolResult (JsonPathExecContext cxt, JsonPathItem jsp, JsonValueList *found, JsonPathBool res)

static void	getJsonPathItem (JsonPathExecContext cxt, JsonPathItem item, JsonbValue *value)

static JsonbValue *	GetJsonPathVar (void cxt, char varName, int varNameLen, JsonbValue baseObject, int baseObjectId)

static int	CountJsonPathVars (void *cxt)

static void	JsonItemFromDatum (Datum val, Oid typid, int32 typmod, JsonbValue *res)

static void	JsonbValueInitNumericDatum (JsonbValue *jbv, Datum num)

static void	getJsonPathVariable (JsonPathExecContext cxt, JsonPathItem variable, JsonbValue *value)

static int	countVariablesFromJsonb (void *varsJsonb)

static JsonbValue *	getJsonPathVariableFromJsonb (void varsJsonb, char varName, int varNameLength, JsonbValue baseObject, int baseObjectId)

static int	JsonbArraySize (JsonbValue *jb)

static JsonPathBool	executeComparison (JsonPathItem cmp, JsonbValue lv, JsonbValue rv, void p)

static JsonPathBool	compareItems (int32 op, JsonbValue jb1, JsonbValue jb2, bool useTz)

static int	compareNumeric (Numeric a, Numeric b)

static JsonbValue *	copyJsonbValue (JsonbValue *src)

static JsonPathExecResult	getArrayIndex (JsonPathExecContext cxt, JsonPathItem jsp, JsonbValue jb, int32 index)

static JsonBaseObjectInfo	setBaseObject (JsonPathExecContext cxt, JsonbValue jbv, int32 id)

static void	JsonValueListClear (JsonValueList *jvl)

static void	JsonValueListAppend (JsonValueList jvl, JsonbValue jbv)

static int	JsonValueListLength (const JsonValueList *jvl)

static bool	JsonValueListIsEmpty (JsonValueList *jvl)

static JsonbValue *	JsonValueListHead (JsonValueList *jvl)

static List *	JsonValueListGetList (JsonValueList *jvl)

static void	JsonValueListInitIterator (const JsonValueList jvl, JsonValueListIterator it)

static JsonbValue *	JsonValueListNext (const JsonValueList jvl, JsonValueListIterator it)

static JsonbValue *	JsonbInitBinary (JsonbValue jbv, Jsonb jb)

static int	JsonbType (JsonbValue *jb)

static JsonbValue *	getScalar (JsonbValue *scalar, enum jbvType type)

static JsonbValue *	wrapItemsInArray (const JsonValueList *items)

static int	compareDatetime (Datum val1, Oid typid1, Datum val2, Oid typid2, bool useTz, bool *cast_error)

static void	checkTimezoneIsUsedForCast (bool useTz, const char type1, const char type2)

static void	JsonTableInitOpaque (TableFuncScanState *state, int natts)

static JsonTablePlanState *	JsonTableInitPlan (JsonTableExecContext cxt, JsonTablePlan plan, JsonTablePlanState parentstate, List args, MemoryContext mcxt)

static void	JsonTableSetDocument (TableFuncScanState *state, Datum value)

static void	JsonTableResetRowPattern (JsonTablePlanState *planstate, Datum item)

static bool	JsonTableFetchRow (TableFuncScanState *state)

static Datum	JsonTableGetValue (TableFuncScanState state, int colnum, Oid typid, int32 typmod, bool isnull)

static void	JsonTableDestroyOpaque (TableFuncScanState *state)

static bool	JsonTablePlanScanNextRow (JsonTablePlanState *planstate)

static void	JsonTableResetNestedPlan (JsonTablePlanState *planstate)

static bool	JsonTablePlanJoinNextRow (JsonTablePlanState *planstate)

static bool	JsonTablePlanNextRow (JsonTablePlanState *planstate)

static Datum	jsonb_path_exists_internal (FunctionCallInfo fcinfo, bool tz)

Datum	jsonb_path_exists (PG_FUNCTION_ARGS)

Datum	jsonb_path_exists_tz (PG_FUNCTION_ARGS)

Datum	jsonb_path_exists_opr (PG_FUNCTION_ARGS)

static Datum	jsonb_path_match_internal (FunctionCallInfo fcinfo, bool tz)

Datum	jsonb_path_match (PG_FUNCTION_ARGS)

Datum	jsonb_path_match_tz (PG_FUNCTION_ARGS)

Datum	jsonb_path_match_opr (PG_FUNCTION_ARGS)

static Datum	jsonb_path_query_internal (FunctionCallInfo fcinfo, bool tz)

Datum	jsonb_path_query (PG_FUNCTION_ARGS)

Datum	jsonb_path_query_tz (PG_FUNCTION_ARGS)

static Datum	jsonb_path_query_array_internal (FunctionCallInfo fcinfo, bool tz)

Datum	jsonb_path_query_array (PG_FUNCTION_ARGS)

Datum	jsonb_path_query_array_tz (PG_FUNCTION_ARGS)

static Datum	jsonb_path_query_first_internal (FunctionCallInfo fcinfo, bool tz)

Datum	jsonb_path_query_first (PG_FUNCTION_ARGS)

Datum	jsonb_path_query_first_tz (PG_FUNCTION_ARGS)

static int	binaryCompareStrings (const char s1, int len1, const char s2, int len2)

static int	compareStrings (const char mbstr1, int mblen1, const char mbstr2, int mblen2)

static Datum	castTimeToTimeTz (Datum time, bool useTz)

static int	cmpDateToTimestamp (DateADT date1, Timestamp ts2, bool useTz)

static int	cmpDateToTimestampTz (DateADT date1, TimestampTz tstz2, bool useTz)

static int	cmpTimestampToTimestampTz (Timestamp ts1, TimestampTz tstz2, bool useTz)

bool	JsonPathExists (Datum jb, JsonPath jp, bool error, List *vars)

Datum	JsonPathQuery (Datum jb, JsonPath jp, JsonWrapper wrapper, bool empty, bool error, List vars, const char *column_name)

JsonbValue *	JsonPathValue (Datum jb, JsonPath jp, bool empty, bool error, List vars, const char *column_name)

static JsonTableExecContext *	GetJsonTableExecContext (TableFuncScanState state, const char fname)

Variables
const TableFuncRoutine	JsonbTableRoutine

Macro Definition Documentation

◆ jperIsError

#define jperIsError ( jper ) ((jper) == jperError)

Definition at line 143 of file jsonpath_exec.c.

◆ JSON_TABLE_EXEC_CONTEXT_MAGIC

#define JSON_TABLE_EXEC_CONTEXT_MAGIC 418352867

Definition at line 220 of file jsonpath_exec.c.

◆ jspAutoUnwrap

#define jspAutoUnwrap ( cxt ) ((cxt)->laxMode)

Definition at line 238 of file jsonpath_exec.c.

◆ jspAutoWrap

#define jspAutoWrap ( cxt ) ((cxt)->laxMode)

Definition at line 239 of file jsonpath_exec.c.

◆ jspIgnoreStructuralErrors

#define jspIgnoreStructuralErrors ( cxt ) ((cxt)->ignoreStructuralErrors)

Definition at line 240 of file jsonpath_exec.c.

◆ jspStrictAbsenceOfErrors

#define jspStrictAbsenceOfErrors ( cxt ) (!(cxt)->laxMode)

Definition at line 237 of file jsonpath_exec.c.

◆ jspThrowErrors

#define jspThrowErrors ( cxt ) ((cxt)->throwErrors)

Definition at line 241 of file jsonpath_exec.c.

◆ RETURN_ERROR

#define RETURN_ERROR ( throw_error )

Value:

do { \
    if (jspThrowErrors(cxt)) \
        throw_error; \
    else \
        return jperError; \
} while (0)

Definition at line 244 of file jsonpath_exec.c.

Typedef Documentation

◆ BinaryArithmFunc

typedef Numeric(* BinaryArithmFunc) (Numeric num1, Numeric num2, bool *error)

Definition at line 256 of file jsonpath_exec.c.

◆ JsonBaseObjectInfo

typedef struct JsonBaseObjectInfo JsonBaseObjectInfo

◆ JsonLikeRegexContext

typedef struct JsonLikeRegexContext JsonLikeRegexContext

◆ JsonPathBool

typedef enum JsonPathBool JsonPathBool

◆ JsonPathCountVarsCallback

typedef int(* JsonPathCountVarsCallback) (void *vars)

Definition at line 92 of file jsonpath_exec.c.

◆ JsonPathExecContext

typedef struct JsonPathExecContext JsonPathExecContext

◆ JsonPathExecResult

typedef enum JsonPathExecResult JsonPathExecResult

◆ JsonPathGetVarCallback

typedef JsonbValue*(* JsonPathGetVarCallback) (void *vars, char *varName, int varNameLen, JsonbValue *baseObject, int *baseObjectId)

Definition at line 90 of file jsonpath_exec.c.

◆ JsonPathPredicateCallback

typedef JsonPathBool(* JsonPathPredicateCallback) (JsonPathItem *jsp, JsonbValue *larg, JsonbValue *rarg, void *param)

Definition at line 252 of file jsonpath_exec.c.

◆ JsonTableExecContext

typedef struct JsonTableExecContext JsonTableExecContext

◆ JsonTablePlanRowSource

typedef struct JsonTablePlanRowSource JsonTablePlanRowSource

◆ JsonTablePlanState

typedef struct JsonTablePlanState JsonTablePlanState

◆ JsonValueList

typedef struct JsonValueList JsonValueList

◆ JsonValueListIterator

typedef struct JsonValueListIterator JsonValueListIterator

Enumeration Type Documentation

◆ JsonPathBool

enum JsonPathBool

Enumerator
jpbFalse
jpbTrue
jpbUnknown

Definition at line 128 of file jsonpath_exec.c.

 {
     jpbFalse = 0,
     jpbTrue = 1,
     jpbUnknown = 2
 } JsonPathBool;

◆ JsonPathExecResult

enum JsonPathExecResult

Enumerator
jperOk
jperNotFound
jperError

Definition at line 136 of file jsonpath_exec.c.

 {
     jperOk = 0,
     jperNotFound = 1,
     jperError = 2
 } JsonPathExecResult;

Function Documentation

◆ appendBoolResult()

static JsonPathExecResult appendBoolResult	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonValueList *	found,
		JsonPathBool	res
	)

static

Definition at line 2948 of file jsonpath_exec.c.

 {
     JsonPathItem next;
     JsonbValue  jbv;
  
     if (!jspGetNext(jsp, &next) && !found)
         return jperOk;          /* found singleton boolean value */
  
     if (res == jpbUnknown)
     {
         jbv.type = jbvNull;
     }
     else
     {
         jbv.type = jbvBool;
         jbv.val.boolean = res == jpbTrue;
     }
  
     return executeNextItem(cxt, jsp, &next, &jbv, found, true);
 }

References executeNextItem(), jbvBool, jbvNull, jpbTrue, jpbUnknown, jperOk, jspGetNext(), next, res, JsonbValue::type, and JsonbValue::val.

Referenced by executeItemOptUnwrapTarget().

◆ binaryCompareStrings()

static int binaryCompareStrings	(	const char *	s1,
		int	len1,
		const char *	s2,
		int	len2
	)

static

Definition at line 3271 of file jsonpath_exec.c.

 {
     int         cmp;
  
     cmp = memcmp(s1, s2, Min(len1, len2));
  
     if (cmp != 0)
         return cmp;
  
     if (len1 == len2)
         return 0;
  
     return len1 < len2 ? -1 : 1;
 }

References cmp(), Min, s1, and s2.

Referenced by compareStrings().

◆ castTimeToTimeTz()

static Datum castTimeToTimeTz	(	Datum	time,
		bool	useTz
	)

static

Definition at line 3696 of file jsonpath_exec.c.

 {
     checkTimezoneIsUsedForCast(useTz, "time", "timetz");
  
     return DirectFunctionCall1(time_timetz, time);
 }

References checkTimezoneIsUsedForCast(), DirectFunctionCall1, and time_timetz().

Referenced by compareDatetime().

◆ checkTimezoneIsUsedForCast()

static void checkTimezoneIsUsedForCast	(	bool	useTz,
		const char *	type1,
		const char *	type2
	)

static

Definition at line 3684 of file jsonpath_exec.c.

 {
     if (!useTz)
         ereport(ERROR,
                 (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
                  errmsg("cannot convert value from %s to %s without time zone usage",
                         type1, type2),
                  errhint("Use *_tz() function for time zone support.")));
 }

References ereport, errcode(), errhint(), errmsg(), and ERROR.

Referenced by castTimeToTimeTz(), cmpDateToTimestampTz(), cmpTimestampToTimestampTz(), and executeDateTimeMethod().

◆ cmpDateToTimestamp()

static int cmpDateToTimestamp	(	DateADT	date1,
		Timestamp	ts2,
		bool	useTz
	)

static

Definition at line 3708 of file jsonpath_exec.c.

 {
     return date_cmp_timestamp_internal(date1, ts2);
 }

References date_cmp_timestamp_internal().

Referenced by compareDatetime().

◆ cmpDateToTimestampTz()

static int cmpDateToTimestampTz	(	DateADT	date1,
		TimestampTz	tstz2,
		bool	useTz
	)

static

Definition at line 3717 of file jsonpath_exec.c.

 {
     checkTimezoneIsUsedForCast(useTz, "date", "timestamptz");
  
     return date_cmp_timestamptz_internal(date1, tstz2);
 }

References checkTimezoneIsUsedForCast(), and date_cmp_timestamptz_internal().

Referenced by compareDatetime().

◆ cmpTimestampToTimestampTz()

static int cmpTimestampToTimestampTz	(	Timestamp	ts1,
		TimestampTz	tstz2,
		bool	useTz
	)

static

Definition at line 3728 of file jsonpath_exec.c.

 {
     checkTimezoneIsUsedForCast(useTz, "timestamp", "timestamptz");
  
     return timestamp_cmp_timestamptz_internal(ts1, tstz2);
 }

References checkTimezoneIsUsedForCast(), and timestamp_cmp_timestamptz_internal().

Referenced by compareDatetime().

◆ compareDatetime()

static int compareDatetime	(	Datum	val1,
		Oid	typid1,
		Datum	val2,
		Oid	typid2,
		bool	useTz,
		bool *	cast_error
	)

static

Definition at line 3741 of file jsonpath_exec.c.

 {
     PGFunction  cmpfunc;
  
     *cast_error = false;
  
     switch (typid1)
     {
         case DATEOID:
             switch (typid2)
             {
                 case DATEOID:
                     cmpfunc = date_cmp;
  
                     break;
  
                 case TIMESTAMPOID:
                     return cmpDateToTimestamp(DatumGetDateADT(val1),
                                               DatumGetTimestamp(val2),
                                               useTz);
  
                 case TIMESTAMPTZOID:
                     return cmpDateToTimestampTz(DatumGetDateADT(val1),
                                                 DatumGetTimestampTz(val2),
                                                 useTz);
  
                 case TIMEOID:
                 case TIMETZOID:
                     *cast_error = true; /* uncomparable types */
                     return 0;
  
                 default:
                     elog(ERROR, "unrecognized SQL/JSON datetime type oid: %u",
                          typid2);
             }
             break;
  
         case TIMEOID:
             switch (typid2)
             {
                 case TIMEOID:
                     cmpfunc = time_cmp;
  
                     break;
  
                 case TIMETZOID:
                     val1 = castTimeToTimeTz(val1, useTz);
                     cmpfunc = timetz_cmp;
  
                     break;
  
                 case DATEOID:
                 case TIMESTAMPOID:
                 case TIMESTAMPTZOID:
                     *cast_error = true; /* uncomparable types */
                     return 0;
  
                 default:
                     elog(ERROR, "unrecognized SQL/JSON datetime type oid: %u",
                          typid2);
             }
             break;
  
         case TIMETZOID:
             switch (typid2)
             {
                 case TIMEOID:
                     val2 = castTimeToTimeTz(val2, useTz);
                     cmpfunc = timetz_cmp;
  
                     break;
  
                 case TIMETZOID:
                     cmpfunc = timetz_cmp;
  
                     break;
  
                 case DATEOID:
                 case TIMESTAMPOID:
                 case TIMESTAMPTZOID:
                     *cast_error = true; /* uncomparable types */
                     return 0;
  
                 default:
                     elog(ERROR, "unrecognized SQL/JSON datetime type oid: %u",
                          typid2);
             }
             break;
  
         case TIMESTAMPOID:
             switch (typid2)
             {
                 case DATEOID:
                     return -cmpDateToTimestamp(DatumGetDateADT(val2),
                                                DatumGetTimestamp(val1),
                                                useTz);
  
                 case TIMESTAMPOID:
                     cmpfunc = timestamp_cmp;
  
                     break;
  
                 case TIMESTAMPTZOID:
                     return cmpTimestampToTimestampTz(DatumGetTimestamp(val1),
                                                      DatumGetTimestampTz(val2),
                                                      useTz);
  
                 case TIMEOID:
                 case TIMETZOID:
                     *cast_error = true; /* uncomparable types */
                     return 0;
  
                 default:
                     elog(ERROR, "unrecognized SQL/JSON datetime type oid: %u",
                          typid2);
             }
             break;
  
         case TIMESTAMPTZOID:
             switch (typid2)
             {
                 case DATEOID:
                     return -cmpDateToTimestampTz(DatumGetDateADT(val2),
                                                  DatumGetTimestampTz(val1),
                                                  useTz);
  
                 case TIMESTAMPOID:
                     return -cmpTimestampToTimestampTz(DatumGetTimestamp(val2),
                                                       DatumGetTimestampTz(val1),
                                                       useTz);
  
                 case TIMESTAMPTZOID:
                     cmpfunc = timestamp_cmp;
  
                     break;
  
                 case TIMEOID:
                 case TIMETZOID:
                     *cast_error = true; /* uncomparable types */
                     return 0;
  
                 default:
                     elog(ERROR, "unrecognized SQL/JSON datetime type oid: %u",
                          typid2);
             }
             break;
  
         default:
             elog(ERROR, "unrecognized SQL/JSON datetime type oid: %u", typid1);
     }
  
     if (*cast_error)
         return 0;               /* cast error */
  
     return DatumGetInt32(DirectFunctionCall2(cmpfunc, val1, val2));
 }

References castTimeToTimeTz(), cmpDateToTimestamp(), cmpDateToTimestampTz(), cmpTimestampToTimestampTz(), date_cmp(), DatumGetDateADT(), DatumGetInt32(), DatumGetTimestamp(), DatumGetTimestampTz(), DirectFunctionCall2, elog, ERROR, time_cmp(), timestamp_cmp(), and timetz_cmp().

Referenced by compareItems().

◆ compareItems()

static JsonPathBool compareItems	(	int32	op,
		JsonbValue *	jb1,
		JsonbValue *	jb2,
		bool	useTz
	)

static

Definition at line 3359 of file jsonpath_exec.c.

 {
     int         cmp;
     bool        res;
  
     if (jb1->type != jb2->type)
     {
         if (jb1->type == jbvNull || jb2->type == jbvNull)
  
             /*
              * Equality and order comparison of nulls to non-nulls returns
              * always false, but inequality comparison returns true.
              */
             return op == jpiNotEqual ? jpbTrue : jpbFalse;
  
         /* Non-null items of different types are not comparable. */
         return jpbUnknown;
     }
  
     switch (jb1->type)
     {
         case jbvNull:
             cmp = 0;
             break;
         case jbvBool:
             cmp = jb1->val.boolean == jb2->val.boolean ? 0 :
                 jb1->val.boolean ? 1 : -1;
             break;
         case jbvNumeric:
             cmp = compareNumeric(jb1->val.numeric, jb2->val.numeric);
             break;
         case jbvString:
             if (op == jpiEqual)
                 return jb1->val.string.len != jb2->val.string.len ||
                     memcmp(jb1->val.string.val,
                            jb2->val.string.val,
                            jb1->val.string.len) ? jpbFalse : jpbTrue;
  
             cmp = compareStrings(jb1->val.string.val, jb1->val.string.len,
                                  jb2->val.string.val, jb2->val.string.len);
             break;
         case jbvDatetime:
             {
                 bool        cast_error;
  
                 cmp = compareDatetime(jb1->val.datetime.value,
                                       jb1->val.datetime.typid,
                                       jb2->val.datetime.value,
                                       jb2->val.datetime.typid,
                                       useTz,
                                       &cast_error);
  
                 if (cast_error)
                     return jpbUnknown;
             }
             break;
  
         case jbvBinary:
         case jbvArray:
         case jbvObject:
             return jpbUnknown;  /* non-scalars are not comparable */
  
         default:
             elog(ERROR, "invalid jsonb value type %d", jb1->type);
     }
  
     switch (op)
     {
         case jpiEqual:
             res = (cmp == 0);
             break;
         case jpiNotEqual:
             res = (cmp != 0);
             break;
         case jpiLess:
             res = (cmp < 0);
             break;
         case jpiGreater:
             res = (cmp > 0);
             break;
         case jpiLessOrEqual:
             res = (cmp <= 0);
             break;
         case jpiGreaterOrEqual:
             res = (cmp >= 0);
             break;
         default:
             elog(ERROR, "unrecognized jsonpath operation: %d", op);
             return jpbUnknown;
     }
  
     return res ? jpbTrue : jpbFalse;
 }

References cmp(), compareDatetime(), compareNumeric(), compareStrings(), elog, ERROR, jbvArray, jbvBinary, jbvBool, jbvDatetime, jbvNull, jbvNumeric, jbvObject, jbvString, jpbFalse, jpbTrue, jpbUnknown, jpiEqual, jpiGreater, jpiGreaterOrEqual, jpiLess, jpiLessOrEqual, jpiNotEqual, res, JsonbValue::type, and JsonbValue::val.

Referenced by executeComparison().

◆ compareNumeric()

static int compareNumeric	(	Numeric	a,
		Numeric	b
	)

static

Definition at line 3455 of file jsonpath_exec.c.

 {
     return DatumGetInt32(DirectFunctionCall2(numeric_cmp,
                                              NumericGetDatum(a),
                                              NumericGetDatum(b)));
 }

References a, b, DatumGetInt32(), DirectFunctionCall2, numeric_cmp(), and NumericGetDatum().

Referenced by compareItems().

◆ compareStrings()

static int compareStrings	(	const char *	mbstr1,
		int	mblen1,
		const char *	mbstr2,
		int	mblen2
	)

static

Definition at line 3292 of file jsonpath_exec.c.

 {
     if (GetDatabaseEncoding() == PG_SQL_ASCII ||
         GetDatabaseEncoding() == PG_UTF8)
     {
         /*
          * It's known property of UTF-8 strings that their per-byte comparison
          * result matches codepoints comparison result.  ASCII can be
          * considered as special case of UTF-8.
          */
         return binaryCompareStrings(mbstr1, mblen1, mbstr2, mblen2);
     }
     else
     {
         char       *utf8str1,
                    *utf8str2;
         int         cmp,
                     utf8len1,
                     utf8len2;
  
         /*
          * We have to convert other encodings to UTF-8 first, then compare.
          * Input strings may be not null-terminated and pg_server_to_any() may
          * return them "as is".  So, use strlen() only if there is real
          * conversion.
          */
         utf8str1 = pg_server_to_any(mbstr1, mblen1, PG_UTF8);
         utf8str2 = pg_server_to_any(mbstr2, mblen2, PG_UTF8);
         utf8len1 = (mbstr1 == utf8str1) ? mblen1 : strlen(utf8str1);
         utf8len2 = (mbstr2 == utf8str2) ? mblen2 : strlen(utf8str2);
  
         cmp = binaryCompareStrings(utf8str1, utf8len1, utf8str2, utf8len2);
  
         /*
          * If pg_server_to_any() did no real conversion, then we actually
          * compared original strings.  So, we already done.
          */
         if (mbstr1 == utf8str1 && mbstr2 == utf8str2)
             return cmp;
  
         /* Free memory if needed */
         if (mbstr1 != utf8str1)
             pfree(utf8str1);
         if (mbstr2 != utf8str2)
             pfree(utf8str2);
  
         /*
          * When all Unicode codepoints are equal, return result of binary
          * comparison.  In some edge cases, same characters may have different
          * representations in encoding.  Then our behavior could diverge from
          * standard.  However, that allow us to do simple binary comparison
          * for "==" operator, which is performance critical in typical cases.
          * In future to implement strict standard conformance, we can do
          * normalization of input JSON strings.
          */
         if (cmp == 0)
             return binaryCompareStrings(mbstr1, mblen1, mbstr2, mblen2);
         else
             return cmp;
     }
 }

References binaryCompareStrings(), cmp(), GetDatabaseEncoding(), pfree(), pg_server_to_any(), PG_SQL_ASCII, and PG_UTF8.

Referenced by compareItems().

◆ copyJsonbValue()

static JsonbValue * copyJsonbValue ( JsonbValue * src )

static

Definition at line 3463 of file jsonpath_exec.c.

 {
     JsonbValue *dst = palloc(sizeof(*dst));
  
     *dst = *src;
  
     return dst;
 }

References palloc().

Referenced by executeAnyItem(), and executeNextItem().

◆ CountJsonPathVars()

static int CountJsonPathVars ( void * cxt )

static

Definition at line 3054 of file jsonpath_exec.c.

 {
     List       *vars = (List *) cxt;
  
     return list_length(vars);
 }

References list_length().

Referenced by JsonPathExists(), JsonPathQuery(), JsonPathValue(), and JsonTableResetRowPattern().

◆ countVariablesFromJsonb()

static int countVariablesFromJsonb ( void * varsJsonb )

static

Definition at line 3221 of file jsonpath_exec.c.

 {
     Jsonb      *vars = varsJsonb;
  
     if (vars && !JsonContainerIsObject(&vars->root))
     {
         ereport(ERROR,
                 errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                 errmsg("\"vars\" argument is not an object"),
                 errdetail("Jsonpath parameters should be encoded as key-value pairs of \"vars\" object."));
     }
  
     /* count of base objects */
     return vars != NULL ? 1 : 0;
 }

References ereport, errcode(), errdetail(), errmsg(), ERROR, and JsonContainerIsObject.

Referenced by jsonb_path_exists_internal(), jsonb_path_match_internal(), jsonb_path_query_array_internal(), jsonb_path_query_first_internal(), and jsonb_path_query_internal().

◆ executeAnyItem()

static JsonPathExecResult executeAnyItem	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbContainer *	jbc,
		JsonValueList *	found,
		uint32	level,
		uint32	first,
		uint32	last,
		bool	ignoreStructuralErrors,
		bool	unwrapNext
	)

static

Definition at line 1952 of file jsonpath_exec.c.

 {
     JsonPathExecResult res = jperNotFound;
     JsonbIterator *it;
     int32       r;
     JsonbValue  v;
  
     check_stack_depth();
  
     if (level > last)
         return res;
  
     it = JsonbIteratorInit(jbc);
  
     /*
      * Recursively iterate over jsonb objects/arrays
      */
     while ((r = JsonbIteratorNext(&it, &v, true)) != WJB_DONE)
     {
         if (r == WJB_KEY)
         {
             r = JsonbIteratorNext(&it, &v, true);
             Assert(r == WJB_VALUE);
         }
  
         if (r == WJB_VALUE || r == WJB_ELEM)
         {
  
             if (level >= first ||
                 (first == PG_UINT32_MAX && last == PG_UINT32_MAX &&
                  v.type != jbvBinary))  /* leaves only requested */
             {
                 /* check expression */
                 if (jsp)
                 {
                     if (ignoreStructuralErrors)
                     {
                         bool        savedIgnoreStructuralErrors;
  
                         savedIgnoreStructuralErrors = cxt->ignoreStructuralErrors;
                         cxt->ignoreStructuralErrors = true;
                         res = executeItemOptUnwrapTarget(cxt, jsp, &v, found, unwrapNext);
                         cxt->ignoreStructuralErrors = savedIgnoreStructuralErrors;
                     }
                     else
                         res = executeItemOptUnwrapTarget(cxt, jsp, &v, found, unwrapNext);
  
                     if (jperIsError(res))
                         break;
  
                     if (res == jperOk && !found)
                         break;
                 }
                 else if (found)
                     JsonValueListAppend(found, copyJsonbValue(&v));
                 else
                     return jperOk;
             }
  
             if (level < last && v.type == jbvBinary)
             {
                 res = executeAnyItem
                     (cxt, jsp, v.val.binary.data, found,
                      level + 1, first, last,
                      ignoreStructuralErrors, unwrapNext);
  
                 if (jperIsError(res))
                     break;
  
                 if (res == jperOk && found == NULL)
                     break;
             }
         }
     }
  
     return res;
 }

References Assert, check_stack_depth(), copyJsonbValue(), executeItemOptUnwrapTarget(), JsonPathExecContext::ignoreStructuralErrors, jbvBinary, jperIsError, jperNotFound, jperOk, JsonbIteratorInit(), JsonbIteratorNext(), JsonValueListAppend(), PG_UINT32_MAX, res, JsonbValue::type, JsonbValue::val, WJB_DONE, WJB_ELEM, WJB_KEY, and WJB_VALUE.

Referenced by executeItemOptUnwrapTarget(), and executeItemUnwrapTargetArray().

◆ executeBinaryArithmExpr()

static JsonPathExecResult executeBinaryArithmExpr	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		BinaryArithmFunc	func,
		JsonValueList *	found
	)

static

Definition at line 2123 of file jsonpath_exec.c.

 {
     JsonPathExecResult jper;
     JsonPathItem elem;
     JsonValueList lseq = {0};
     JsonValueList rseq = {0};
     JsonbValue *lval;
     JsonbValue *rval;
     Numeric     res;
  
     jspGetLeftArg(jsp, &elem);
  
     /*
      * XXX: By standard only operands of multiplicative expressions are
      * unwrapped.  We extend it to other binary arithmetic expressions too.
      */
     jper = executeItemOptUnwrapResult(cxt, &elem, jb, true, &lseq);
     if (jperIsError(jper))
         return jper;
  
     jspGetRightArg(jsp, &elem);
  
     jper = executeItemOptUnwrapResult(cxt, &elem, jb, true, &rseq);
     if (jperIsError(jper))
         return jper;
  
     if (JsonValueListLength(&lseq) != 1 ||
         !(lval = getScalar(JsonValueListHead(&lseq), jbvNumeric)))
         RETURN_ERROR(ereport(ERROR,
                              (errcode(ERRCODE_SINGLETON_SQL_JSON_ITEM_REQUIRED),
                               errmsg("left operand of jsonpath operator %s is not a single numeric value",
                                      jspOperationName(jsp->type)))));
  
     if (JsonValueListLength(&rseq) != 1 ||
         !(rval = getScalar(JsonValueListHead(&rseq), jbvNumeric)))
         RETURN_ERROR(ereport(ERROR,
                              (errcode(ERRCODE_SINGLETON_SQL_JSON_ITEM_REQUIRED),
                               errmsg("right operand of jsonpath operator %s is not a single numeric value",
                                      jspOperationName(jsp->type)))));
  
     if (jspThrowErrors(cxt))
     {
         res = func(lval->val.numeric, rval->val.numeric, NULL);
     }
     else
     {
         bool        error = false;
  
         res = func(lval->val.numeric, rval->val.numeric, &error);
  
         if (error)
             return jperError;
     }
  
     if (!jspGetNext(jsp, &elem) && !found)
         return jperOk;
  
     lval = palloc(sizeof(*lval));
     lval->type = jbvNumeric;
     lval->val.numeric = res;
  
     return executeNextItem(cxt, jsp, &elem, lval, found, false);
 }

References ereport, errcode(), errmsg(), ERROR, error(), executeItemOptUnwrapResult(), executeNextItem(), getScalar(), jbvNumeric, jperError, jperIsError, jperOk, JsonValueListHead(), JsonValueListLength(), jspGetLeftArg(), jspGetNext(), jspGetRightArg(), jspOperationName(), jspThrowErrors, palloc(), res, RETURN_ERROR, JsonbValue::type, JsonPathItem::type, and JsonbValue::val.

Referenced by executeItemOptUnwrapTarget().

◆ executeBoolItem()

static JsonPathBool executeBoolItem	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		bool	canHaveNext
	)

static

Definition at line 1795 of file jsonpath_exec.c.

 {
     JsonPathItem larg;
     JsonPathItem rarg;
     JsonPathBool res;
     JsonPathBool res2;
  
     /* since this function recurses, it could be driven to stack overflow */
     check_stack_depth();
  
     if (!canHaveNext && jspHasNext(jsp))
         elog(ERROR, "boolean jsonpath item cannot have next item");
  
     switch (jsp->type)
     {
         case jpiAnd:
             jspGetLeftArg(jsp, &larg);
             res = executeBoolItem(cxt, &larg, jb, false);
  
             if (res == jpbFalse)
                 return jpbFalse;
  
             /*
              * SQL/JSON says that we should check second arg in case of
              * jperError
              */
  
             jspGetRightArg(jsp, &rarg);
             res2 = executeBoolItem(cxt, &rarg, jb, false);
  
             return res2 == jpbTrue ? res : res2;
  
         case jpiOr:
             jspGetLeftArg(jsp, &larg);
             res = executeBoolItem(cxt, &larg, jb, false);
  
             if (res == jpbTrue)
                 return jpbTrue;
  
             jspGetRightArg(jsp, &rarg);
             res2 = executeBoolItem(cxt, &rarg, jb, false);
  
             return res2 == jpbFalse ? res : res2;
  
         case jpiNot:
             jspGetArg(jsp, &larg);
  
             res = executeBoolItem(cxt, &larg, jb, false);
  
             if (res == jpbUnknown)
                 return jpbUnknown;
  
             return res == jpbTrue ? jpbFalse : jpbTrue;
  
         case jpiIsUnknown:
             jspGetArg(jsp, &larg);
             res = executeBoolItem(cxt, &larg, jb, false);
             return res == jpbUnknown ? jpbTrue : jpbFalse;
  
         case jpiEqual:
         case jpiNotEqual:
         case jpiLess:
         case jpiGreater:
         case jpiLessOrEqual:
         case jpiGreaterOrEqual:
             jspGetLeftArg(jsp, &larg);
             jspGetRightArg(jsp, &rarg);
             return executePredicate(cxt, jsp, &larg, &rarg, jb, true,
                                     executeComparison, cxt);
  
         case jpiStartsWith:     /* 'whole STARTS WITH initial' */
             jspGetLeftArg(jsp, &larg);  /* 'whole' */
             jspGetRightArg(jsp, &rarg); /* 'initial' */
             return executePredicate(cxt, jsp, &larg, &rarg, jb, false,
                                     executeStartsWith, NULL);
  
         case jpiLikeRegex:      /* 'expr LIKE_REGEX pattern FLAGS flags' */
             {
                 /*
                  * 'expr' is a sequence-returning expression.  'pattern' is a
                  * regex string literal.  SQL/JSON standard requires XQuery
                  * regexes, but we use Postgres regexes here.  'flags' is a
                  * string literal converted to integer flags at compile-time.
                  */
                 JsonLikeRegexContext lrcxt = {0};
  
                 jspInitByBuffer(&larg, jsp->base,
                                 jsp->content.like_regex.expr);
  
                 return executePredicate(cxt, jsp, &larg, NULL, jb, false,
                                         executeLikeRegex, &lrcxt);
             }
  
         case jpiExists:
             jspGetArg(jsp, &larg);
  
             if (jspStrictAbsenceOfErrors(cxt))
             {
                 /*
                  * In strict mode we must get a complete list of values to
                  * check that there are no errors at all.
                  */
                 JsonValueList vals = {0};
                 JsonPathExecResult res =
                     executeItemOptUnwrapResultNoThrow(cxt, &larg, jb,
                                                       false, &vals);
  
                 if (jperIsError(res))
                     return jpbUnknown;
  
                 return JsonValueListIsEmpty(&vals) ? jpbFalse : jpbTrue;
             }
             else
             {
                 JsonPathExecResult res =
                     executeItemOptUnwrapResultNoThrow(cxt, &larg, jb,
                                                       false, NULL);
  
                 if (jperIsError(res))
                     return jpbUnknown;
  
                 return res == jperOk ? jpbTrue : jpbFalse;
             }
  
         default:
             elog(ERROR, "invalid boolean jsonpath item type: %d", jsp->type);
             return jpbUnknown;
     }
 }

References JsonPathItem::base, check_stack_depth(), JsonPathItem::content, elog, ERROR, executeComparison(), executeItemOptUnwrapResultNoThrow(), executeLikeRegex(), executePredicate(), executeStartsWith(), jpbFalse, jpbTrue, jpbUnknown, jperIsError, jperOk, jpiAnd, jpiEqual, jpiExists, jpiGreater, jpiGreaterOrEqual, jpiIsUnknown, jpiLess, jpiLessOrEqual, jpiLikeRegex, jpiNot, jpiNotEqual, jpiOr, jpiStartsWith, JsonValueListIsEmpty(), jspGetArg(), jspGetLeftArg(), jspGetRightArg(), jspHasNext, jspInitByBuffer(), jspStrictAbsenceOfErrors, JsonPathItem::like_regex, res, and JsonPathItem::type.

Referenced by executeItemOptUnwrapTarget(), and executeNestedBoolItem().

◆ executeComparison()

static JsonPathBool executeComparison	(	JsonPathItem *	cmp,
		JsonbValue *	lv,
		JsonbValue *	rv,
		void *	p
	)

static

Definition at line 3260 of file jsonpath_exec.c.

 {
     JsonPathExecContext *cxt = (JsonPathExecContext *) p;
  
     return compareItems(cmp->type, lv, rv, cxt->useTz);
 }

References cmp(), compareItems(), and JsonPathExecContext::useTz.

Referenced by executeBoolItem().

◆ executeDateTimeMethod()

static JsonPathExecResult executeDateTimeMethod	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		JsonValueList *	found
	)

static

Definition at line 2357 of file jsonpath_exec.c.

 {
     JsonbValue  jbvbuf;
     Datum       value;
     text       *datetime;
     Oid         collid;
     Oid         typid;
     int32       typmod = -1;
     int         tz = 0;
     bool        hasNext;
     JsonPathExecResult res = jperNotFound;
     JsonPathItem elem;
     int32       time_precision = -1;
  
     if (!(jb = getScalar(jb, jbvString)))
         RETURN_ERROR(ereport(ERROR,
                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                               errmsg("jsonpath item method .%s() can only be applied to a string",
                                      jspOperationName(jsp->type)))));
  
     datetime = cstring_to_text_with_len(jb->val.string.val,
                                         jb->val.string.len);
  
     /*
      * At some point we might wish to have callers supply the collation to
      * use, but right now it's unclear that they'd be able to do better than
      * DEFAULT_COLLATION_OID anyway.
      */
     collid = DEFAULT_COLLATION_OID;
  
     /*
      * .datetime(template) has an argument, the rest of the methods don't have
      * an argument.  So we handle that separately.
      */
     if (jsp->type == jpiDatetime && jsp->content.arg)
     {
         text       *template;
         char       *template_str;
         int         template_len;
         ErrorSaveContext escontext = {T_ErrorSaveContext};
  
         jspGetArg(jsp, &elem);
  
         if (elem.type != jpiString)
             elog(ERROR, "invalid jsonpath item type for .datetime() argument");
  
         template_str = jspGetString(&elem, &template_len);
  
         template = cstring_to_text_with_len(template_str,
                                             template_len);
  
         value = parse_datetime(datetime, template, collid, true,
                                &typid, &typmod, &tz,
                                jspThrowErrors(cxt) ? NULL : (Node *) &escontext);
  
         if (escontext.error_occurred)
             res = jperError;
         else
             res = jperOk;
     }
     else
     {
         /*
          * According to SQL/JSON standard enumerate ISO formats for: date,
          * timetz, time, timestamptz, timestamp.
          *
          * We also support ISO 8601 format (with "T") for timestamps, because
          * to_json[b]() functions use this format.
          */
         static const char *fmt_str[] =
         {
             "yyyy-mm-dd",       /* date */
             "HH24:MI:SS.USTZ",  /* timetz */
             "HH24:MI:SSTZ",
             "HH24:MI:SS.US",    /* time without tz */
             "HH24:MI:SS",
             "yyyy-mm-dd HH24:MI:SS.USTZ",   /* timestamptz */
             "yyyy-mm-dd HH24:MI:SSTZ",
             "yyyy-mm-dd\"T\"HH24:MI:SS.USTZ",
             "yyyy-mm-dd\"T\"HH24:MI:SSTZ",
             "yyyy-mm-dd HH24:MI:SS.US", /* timestamp without tz */
             "yyyy-mm-dd HH24:MI:SS",
             "yyyy-mm-dd\"T\"HH24:MI:SS.US",
             "yyyy-mm-dd\"T\"HH24:MI:SS"
         };
  
         /* cache for format texts */
         static text *fmt_txt[lengthof(fmt_str)] = {0};
         int         i;
  
         /*
          * Check for optional precision for methods other than .datetime() and
          * .date()
          */
         if (jsp->type != jpiDatetime && jsp->type != jpiDate &&
             jsp->content.arg)
         {
             bool        have_error;
  
             jspGetArg(jsp, &elem);
  
             if (elem.type != jpiNumeric)
                 elog(ERROR, "invalid jsonpath item type for %s argument",
                      jspOperationName(jsp->type));
  
             time_precision = numeric_int4_opt_error(jspGetNumeric(&elem),
                                                     &have_error);
             if (have_error)
                 RETURN_ERROR(ereport(ERROR,
                                      (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                       errmsg("time precision of jsonpath item method .%s() is out of range for type integer",
                                              jspOperationName(jsp->type)))));
         }
  
         /* loop until datetime format fits */
         for (i = 0; i < lengthof(fmt_str); i++)
         {
             ErrorSaveContext escontext = {T_ErrorSaveContext};
  
             if (!fmt_txt[i])
             {
                 MemoryContext oldcxt =
                     MemoryContextSwitchTo(TopMemoryContext);
  
                 fmt_txt[i] = cstring_to_text(fmt_str[i]);
                 MemoryContextSwitchTo(oldcxt);
             }
  
             value = parse_datetime(datetime, fmt_txt[i], collid, true,
                                    &typid, &typmod, &tz,
                                    (Node *) &escontext);
  
             if (!escontext.error_occurred)
             {
                 res = jperOk;
                 break;
             }
         }
  
         if (res == jperNotFound)
         {
             if (jsp->type == jpiDatetime)
                 RETURN_ERROR(ereport(ERROR,
                                      (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                       errmsg("%s format is not recognized: \"%s\"",
                                              "datetime", text_to_cstring(datetime)),
                                       errhint("Use a datetime template argument to specify the input data format."))));
             else
                 RETURN_ERROR(ereport(ERROR,
                                      (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                       errmsg("%s format is not recognized: \"%s\"",
                                              jspOperationName(jsp->type), text_to_cstring(datetime)))));
  
         }
     }
  
     /*
      * parse_datetime() processes the entire input string per the template or
      * ISO format and returns the Datum in best fitted datetime type.  So, if
      * this call is for a specific datatype, then we do the conversion here.
      * Throw an error for incompatible types.
      */
     switch (jsp->type)
     {
         case jpiDatetime:       /* Nothing to do for DATETIME */
             break;
         case jpiDate:
             {
                 /* Convert result type to date */
                 switch (typid)
                 {
                     case DATEOID:   /* Nothing to do for DATE */
                         break;
                     case TIMEOID:
                     case TIMETZOID:
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                               errmsg("%s format is not recognized: \"%s\"",
                                                      "date", text_to_cstring(datetime)))));
                         break;
                     case TIMESTAMPOID:
                         value = DirectFunctionCall1(timestamp_date,
                                                     value);
                         break;
                     case TIMESTAMPTZOID:
                         checkTimezoneIsUsedForCast(cxt->useTz,
                                                    "timestamptz", "date");
                         value = DirectFunctionCall1(timestamptz_date,
                                                     value);
                         break;
                     default:
                         elog(ERROR, "type with oid %u not supported", typid);
                 }
  
                 typid = DATEOID;
             }
             break;
         case jpiTime:
             {
                 /* Convert result type to time without time zone */
                 switch (typid)
                 {
                     case DATEOID:
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                               errmsg("%s format is not recognized: \"%s\"",
                                                      "time", text_to_cstring(datetime)))));
                         break;
                     case TIMEOID:   /* Nothing to do for TIME */
                         break;
                     case TIMETZOID:
                         checkTimezoneIsUsedForCast(cxt->useTz,
                                                    "timetz", "time");
                         value = DirectFunctionCall1(timetz_time,
                                                     value);
                         break;
                     case TIMESTAMPOID:
                         value = DirectFunctionCall1(timestamp_time,
                                                     value);
                         break;
                     case TIMESTAMPTZOID:
                         checkTimezoneIsUsedForCast(cxt->useTz,
                                                    "timestamptz", "time");
                         value = DirectFunctionCall1(timestamptz_time,
                                                     value);
                         break;
                     default:
                         elog(ERROR, "type with oid %u not supported", typid);
                 }
  
                 /* Force the user-given time precision, if any */
                 if (time_precision != -1)
                 {
                     TimeADT     result;
  
                     /* Get a warning when precision is reduced */
                     time_precision = anytime_typmod_check(false,
                                                           time_precision);
                     result = DatumGetTimeADT(value);
                     AdjustTimeForTypmod(&result, time_precision);
                     value = TimeADTGetDatum(result);
  
                     /* Update the typmod value with the user-given precision */
                     typmod = time_precision;
                 }
  
                 typid = TIMEOID;
             }
             break;
         case jpiTimeTz:
             {
                 /* Convert result type to time with time zone */
                 switch (typid)
                 {
                     case DATEOID:
                     case TIMESTAMPOID:
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                               errmsg("%s format is not recognized: \"%s\"",
                                                      "time_tz", text_to_cstring(datetime)))));
                         break;
                     case TIMEOID:
                         checkTimezoneIsUsedForCast(cxt->useTz,
                                                    "time", "timetz");
                         value = DirectFunctionCall1(time_timetz,
                                                     value);
                         break;
                     case TIMETZOID: /* Nothing to do for TIMETZ */
                         break;
                     case TIMESTAMPTZOID:
                         value = DirectFunctionCall1(timestamptz_timetz,
                                                     value);
                         break;
                     default:
                         elog(ERROR, "type with oid %u not supported", typid);
                 }
  
                 /* Force the user-given time precision, if any */
                 if (time_precision != -1)
                 {
                     TimeTzADT  *result;
  
                     /* Get a warning when precision is reduced */
                     time_precision = anytime_typmod_check(true,
                                                           time_precision);
                     result = DatumGetTimeTzADTP(value);
                     AdjustTimeForTypmod(&result->time, time_precision);
                     value = TimeTzADTPGetDatum(result);
  
                     /* Update the typmod value with the user-given precision */
                     typmod = time_precision;
                 }
  
                 typid = TIMETZOID;
             }
             break;
         case jpiTimestamp:
             {
                 /* Convert result type to timestamp without time zone */
                 switch (typid)
                 {
                     case DATEOID:
                         value = DirectFunctionCall1(date_timestamp,
                                                     value);
                         break;
                     case TIMEOID:
                     case TIMETZOID:
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                               errmsg("%s format is not recognized: \"%s\"",
                                                      "timestamp", text_to_cstring(datetime)))));
                         break;
                     case TIMESTAMPOID:  /* Nothing to do for TIMESTAMP */
                         break;
                     case TIMESTAMPTZOID:
                         checkTimezoneIsUsedForCast(cxt->useTz,
                                                    "timestamptz", "timestamp");
                         value = DirectFunctionCall1(timestamptz_timestamp,
                                                     value);
                         break;
                     default:
                         elog(ERROR, "type with oid %u not supported", typid);
                 }
  
                 /* Force the user-given time precision, if any */
                 if (time_precision != -1)
                 {
                     Timestamp   result;
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
  
                     /* Get a warning when precision is reduced */
                     time_precision = anytimestamp_typmod_check(false,
                                                                time_precision);
                     result = DatumGetTimestamp(value);
                     AdjustTimestampForTypmod(&result, time_precision,
                                              (Node *) &escontext);
                     if (escontext.error_occurred)   /* should not happen */
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                               errmsg("time precision of jsonpath item method .%s() is invalid",
                                                      jspOperationName(jsp->type)))));
                     value = TimestampGetDatum(result);
  
                     /* Update the typmod value with the user-given precision */
                     typmod = time_precision;
                 }
  
                 typid = TIMESTAMPOID;
             }
             break;
         case jpiTimestampTz:
             {
                 struct pg_tm tm;
                 fsec_t      fsec;
  
                 /* Convert result type to timestamp with time zone */
                 switch (typid)
                 {
                     case DATEOID:
                         checkTimezoneIsUsedForCast(cxt->useTz,
                                                    "date", "timestamptz");
  
                         /*
                          * Get the timezone value explicitly since JsonbValue
                          * keeps that separate.
                          */
                         j2date(DatumGetDateADT(value) + POSTGRES_EPOCH_JDATE,
                                &(tm.tm_year), &(tm.tm_mon), &(tm.tm_mday));
                         tm.tm_hour = 0;
                         tm.tm_min = 0;
                         tm.tm_sec = 0;
                         tz = DetermineTimeZoneOffset(&tm, session_timezone);
  
                         value = DirectFunctionCall1(date_timestamptz,
                                                     value);
                         break;
                     case TIMEOID:
                     case TIMETZOID:
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                               errmsg("%s format is not recognized: \"%s\"",
                                                      "timestamp_tz", text_to_cstring(datetime)))));
                         break;
                     case TIMESTAMPOID:
                         checkTimezoneIsUsedForCast(cxt->useTz,
                                                    "timestamp", "timestamptz");
  
                         /*
                          * Get the timezone value explicitly since JsonbValue
                          * keeps that separate.
                          */
                         if (timestamp2tm(DatumGetTimestamp(value), NULL, &tm,
                                          &fsec, NULL, NULL) == 0)
                             tz = DetermineTimeZoneOffset(&tm,
                                                          session_timezone);
  
                         value = DirectFunctionCall1(timestamp_timestamptz,
                                                     value);
                         break;
                     case TIMESTAMPTZOID:    /* Nothing to do for TIMESTAMPTZ */
                         break;
                     default:
                         elog(ERROR, "type with oid %u not supported", typid);
                 }
  
                 /* Force the user-given time precision, if any */
                 if (time_precision != -1)
                 {
                     Timestamp   result;
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
  
                     /* Get a warning when precision is reduced */
                     time_precision = anytimestamp_typmod_check(true,
                                                                time_precision);
                     result = DatumGetTimestampTz(value);
                     AdjustTimestampForTypmod(&result, time_precision,
                                              (Node *) &escontext);
                     if (escontext.error_occurred)   /* should not happen */
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_ARGUMENT_FOR_SQL_JSON_DATETIME_FUNCTION),
                                               errmsg("time precision of jsonpath item method .%s() is invalid",
                                                      jspOperationName(jsp->type)))));
                     value = TimestampTzGetDatum(result);
  
                     /* Update the typmod value with the user-given precision */
                     typmod = time_precision;
                 }
  
                 typid = TIMESTAMPTZOID;
             }
             break;
         default:
             elog(ERROR, "unrecognized jsonpath item type: %d", jsp->type);
     }
  
     pfree(datetime);
  
     if (jperIsError(res))
         return res;
  
     hasNext = jspGetNext(jsp, &elem);
  
     if (!hasNext && !found)
         return res;
  
     jb = hasNext ? &jbvbuf : palloc(sizeof(*jb));
  
     jb->type = jbvDatetime;
     jb->val.datetime.value = value;
     jb->val.datetime.typid = typid;
     jb->val.datetime.typmod = typmod;
     jb->val.datetime.tz = tz;
  
     return executeNextItem(cxt, jsp, &elem, jb, found, hasNext);
 }

References AdjustTimeForTypmod(), AdjustTimestampForTypmod(), anytime_typmod_check(), anytimestamp_typmod_check(), JsonPathItem::arg, checkTimezoneIsUsedForCast(), collid, JsonPathItem::content, cstring_to_text(), cstring_to_text_with_len(), date_timestamp(), date_timestamptz(), DatumGetDateADT(), DatumGetTimeADT(), DatumGetTimestamp(), DatumGetTimestampTz(), DatumGetTimeTzADTP(), DetermineTimeZoneOffset(), DirectFunctionCall1, elog, ereport, errcode(), errhint(), errmsg(), ERROR, ErrorSaveContext::error_occurred, executeNextItem(), getScalar(), i, j2date(), jbvDatetime, jbvString, jperError, jperIsError, jperNotFound, jperOk, jpiDate, jpiDatetime, jpiNumeric, jpiString, jpiTime, jpiTimestamp, jpiTimestampTz, jpiTimeTz, jspGetArg(), jspGetNext(), jspGetNumeric(), jspGetString(), jspOperationName(), jspThrowErrors, lengthof, MemoryContextSwitchTo(), numeric_int4_opt_error(), palloc(), parse_datetime(), pfree(), POSTGRES_EPOCH_JDATE, res, RETURN_ERROR, session_timezone, text_to_cstring(), TimeTzADT::time, time_timetz(), TimeADTGetDatum(), timestamp2tm(), timestamp_date(), timestamp_time(), timestamp_timestamptz(), TimestampGetDatum(), timestamptz_date(), timestamptz_time(), timestamptz_timestamp(), timestamptz_timetz(), TimestampTzGetDatum(), timetz_time(), TimeTzADTPGetDatum(), tm, pg_tm::tm_hour, pg_tm::tm_mday, pg_tm::tm_min, pg_tm::tm_mon, pg_tm::tm_sec, pg_tm::tm_year, TopMemoryContext, JsonbValue::type, JsonPathItem::type, JsonPathExecContext::useTz, JsonbValue::val, and value.

Referenced by executeItemOptUnwrapTarget().

◆ executeItem()

static JsonPathExecResult executeItem	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		JsonValueList *	found
	)

static

Definition at line 734 of file jsonpath_exec.c.

 {
     return executeItemOptUnwrapTarget(cxt, jsp, jb, found, jspAutoUnwrap(cxt));
 }

References executeItemOptUnwrapTarget(), and jspAutoUnwrap.

Referenced by executeItemOptUnwrapResult(), executeJsonPath(), executeNextItem(), and getArrayIndex().

◆ executeItemOptUnwrapResult()

static JsonPathExecResult executeItemOptUnwrapResult	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		bool	unwrap,
		JsonValueList *	found
	)

static

Definition at line 1743 of file jsonpath_exec.c.

 {
     if (unwrap && jspAutoUnwrap(cxt))
     {
         JsonValueList seq = {0};
         JsonValueListIterator it;
         JsonPathExecResult res = executeItem(cxt, jsp, jb, &seq);
         JsonbValue *item;
  
         if (jperIsError(res))
             return res;
  
         JsonValueListInitIterator(&seq, &it);
         while ((item = JsonValueListNext(&seq, &it)))
         {
             Assert(item->type != jbvArray);
  
             if (JsonbType(item) == jbvArray)
                 executeItemUnwrapTargetArray(cxt, NULL, item, found, false);
             else
                 JsonValueListAppend(found, item);
         }
  
         return jperOk;
     }
  
     return executeItem(cxt, jsp, jb, found);
 }

References Assert, executeItem(), executeItemUnwrapTargetArray(), jbvArray, jperIsError, jperOk, JsonbType(), JsonValueListAppend(), JsonValueListInitIterator(), JsonValueListNext(), jspAutoUnwrap, res, and JsonbValue::type.

Referenced by executeBinaryArithmExpr(), executeItemOptUnwrapResultNoThrow(), and executeUnaryArithmExpr().

◆ executeItemOptUnwrapResultNoThrow()

static JsonPathExecResult executeItemOptUnwrapResultNoThrow	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		bool	unwrap,
		JsonValueList *	found
	)

static

Definition at line 1778 of file jsonpath_exec.c.

 {
     JsonPathExecResult res;
     bool        throwErrors = cxt->throwErrors;
  
     cxt->throwErrors = false;
     res = executeItemOptUnwrapResult(cxt, jsp, jb, unwrap, found);
     cxt->throwErrors = throwErrors;
  
     return res;
 }

References executeItemOptUnwrapResult(), res, and JsonPathExecContext::throwErrors.

Referenced by executeBoolItem(), and executePredicate().

◆ executeItemOptUnwrapTarget()

static JsonPathExecResult executeItemOptUnwrapTarget	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		JsonValueList *	found,
		bool	unwrap
	)

static

Definition at line 746 of file jsonpath_exec.c.

 {
     JsonPathItem elem;
     JsonPathExecResult res = jperNotFound;
     JsonBaseObjectInfo baseObject;
  
     check_stack_depth();
     CHECK_FOR_INTERRUPTS();
  
     switch (jsp->type)
     {
         case jpiNull:
         case jpiBool:
         case jpiNumeric:
         case jpiString:
         case jpiVariable:
             {
                 JsonbValue  vbuf;
                 JsonbValue *v;
                 bool        hasNext = jspGetNext(jsp, &elem);
  
                 if (!hasNext && !found && jsp->type != jpiVariable)
                 {
                     /*
                      * Skip evaluation, but not for variables.  We must
                      * trigger an error for the missing variable.
                      */
                     res = jperOk;
                     break;
                 }
  
                 v = hasNext ? &vbuf : palloc(sizeof(*v));
  
                 baseObject = cxt->baseObject;
                 getJsonPathItem(cxt, jsp, v);
  
                 res = executeNextItem(cxt, jsp, &elem,
                                       v, found, hasNext);
                 cxt->baseObject = baseObject;
             }
             break;
  
             /* all boolean item types: */
         case jpiAnd:
         case jpiOr:
         case jpiNot:
         case jpiIsUnknown:
         case jpiEqual:
         case jpiNotEqual:
         case jpiLess:
         case jpiGreater:
         case jpiLessOrEqual:
         case jpiGreaterOrEqual:
         case jpiExists:
         case jpiStartsWith:
         case jpiLikeRegex:
             {
                 JsonPathBool st = executeBoolItem(cxt, jsp, jb, true);
  
                 res = appendBoolResult(cxt, jsp, found, st);
                 break;
             }
  
         case jpiAdd:
             return executeBinaryArithmExpr(cxt, jsp, jb,
                                            numeric_add_opt_error, found);
  
         case jpiSub:
             return executeBinaryArithmExpr(cxt, jsp, jb,
                                            numeric_sub_opt_error, found);
  
         case jpiMul:
             return executeBinaryArithmExpr(cxt, jsp, jb,
                                            numeric_mul_opt_error, found);
  
         case jpiDiv:
             return executeBinaryArithmExpr(cxt, jsp, jb,
                                            numeric_div_opt_error, found);
  
         case jpiMod:
             return executeBinaryArithmExpr(cxt, jsp, jb,
                                            numeric_mod_opt_error, found);
  
         case jpiPlus:
             return executeUnaryArithmExpr(cxt, jsp, jb, NULL, found);
  
         case jpiMinus:
             return executeUnaryArithmExpr(cxt, jsp, jb, numeric_uminus,
                                           found);
  
         case jpiAnyArray:
             if (JsonbType(jb) == jbvArray)
             {
                 bool        hasNext = jspGetNext(jsp, &elem);
  
                 res = executeItemUnwrapTargetArray(cxt, hasNext ? &elem : NULL,
                                                    jb, found, jspAutoUnwrap(cxt));
             }
             else if (jspAutoWrap(cxt))
                 res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             else if (!jspIgnoreStructuralErrors(cxt))
                 RETURN_ERROR(ereport(ERROR,
                                      (errcode(ERRCODE_SQL_JSON_ARRAY_NOT_FOUND),
                                       errmsg("jsonpath wildcard array accessor can only be applied to an array"))));
             break;
  
         case jpiAnyKey:
             if (JsonbType(jb) == jbvObject)
             {
                 bool        hasNext = jspGetNext(jsp, &elem);
  
                 if (jb->type != jbvBinary)
                     elog(ERROR, "invalid jsonb object type: %d", jb->type);
  
                 return executeAnyItem
                     (cxt, hasNext ? &elem : NULL,
                      jb->val.binary.data, found, 1, 1, 1,
                      false, jspAutoUnwrap(cxt));
             }
             else if (unwrap && JsonbType(jb) == jbvArray)
                 return executeItemUnwrapTargetArray(cxt, jsp, jb, found, false);
             else if (!jspIgnoreStructuralErrors(cxt))
             {
                 Assert(found);
                 RETURN_ERROR(ereport(ERROR,
                                      (errcode(ERRCODE_SQL_JSON_OBJECT_NOT_FOUND),
                                       errmsg("jsonpath wildcard member accessor can only be applied to an object"))));
             }
             break;
  
         case jpiIndexArray:
             if (JsonbType(jb) == jbvArray || jspAutoWrap(cxt))
             {
                 int         innermostArraySize = cxt->innermostArraySize;
                 int         i;
                 int         size = JsonbArraySize(jb);
                 bool        singleton = size < 0;
                 bool        hasNext = jspGetNext(jsp, &elem);
  
                 if (singleton)
                     size = 1;
  
                 cxt->innermostArraySize = size; /* for LAST evaluation */
  
                 for (i = 0; i < jsp->content.array.nelems; i++)
                 {
                     JsonPathItem from;
                     JsonPathItem to;
                     int32       index;
                     int32       index_from;
                     int32       index_to;
                     bool        range = jspGetArraySubscript(jsp, &from,
                                                              &to, i);
  
                     res = getArrayIndex(cxt, &from, jb, &index_from);
  
                     if (jperIsError(res))
                         break;
  
                     if (range)
                     {
                         res = getArrayIndex(cxt, &to, jb, &index_to);
  
                         if (jperIsError(res))
                             break;
                     }
                     else
                         index_to = index_from;
  
                     if (!jspIgnoreStructuralErrors(cxt) &&
                         (index_from < 0 ||
                          index_from > index_to ||
                          index_to >= size))
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_INVALID_SQL_JSON_SUBSCRIPT),
                                               errmsg("jsonpath array subscript is out of bounds"))));
  
                     if (index_from < 0)
                         index_from = 0;
  
                     if (index_to >= size)
                         index_to = size - 1;
  
                     res = jperNotFound;
  
                     for (index = index_from; index <= index_to; index++)
                     {
                         JsonbValue *v;
                         bool        copy;
  
                         if (singleton)
                         {
                             v = jb;
                             copy = true;
                         }
                         else
                         {
                             v = getIthJsonbValueFromContainer(jb->val.binary.data,
                                                               (uint32) index);
  
                             if (v == NULL)
                                 continue;
  
                             copy = false;
                         }
  
                         if (!hasNext && !found)
                             return jperOk;
  
                         res = executeNextItem(cxt, jsp, &elem, v, found,
                                               copy);
  
                         if (jperIsError(res))
                             break;
  
                         if (res == jperOk && !found)
                             break;
                     }
  
                     if (jperIsError(res))
                         break;
  
                     if (res == jperOk && !found)
                         break;
                 }
  
                 cxt->innermostArraySize = innermostArraySize;
             }
             else if (!jspIgnoreStructuralErrors(cxt))
             {
                 RETURN_ERROR(ereport(ERROR,
                                      (errcode(ERRCODE_SQL_JSON_ARRAY_NOT_FOUND),
                                       errmsg("jsonpath array accessor can only be applied to an array"))));
             }
             break;
  
         case jpiAny:
             {
                 bool        hasNext = jspGetNext(jsp, &elem);
  
                 /* first try without any intermediate steps */
                 if (jsp->content.anybounds.first == 0)
                 {
                     bool        savedIgnoreStructuralErrors;
  
                     savedIgnoreStructuralErrors = cxt->ignoreStructuralErrors;
                     cxt->ignoreStructuralErrors = true;
                     res = executeNextItem(cxt, jsp, &elem,
                                           jb, found, true);
                     cxt->ignoreStructuralErrors = savedIgnoreStructuralErrors;
  
                     if (res == jperOk && !found)
                         break;
                 }
  
                 if (jb->type == jbvBinary)
                     res = executeAnyItem
                         (cxt, hasNext ? &elem : NULL,
                          jb->val.binary.data, found,
                          1,
                          jsp->content.anybounds.first,
                          jsp->content.anybounds.last,
                          true, jspAutoUnwrap(cxt));
                 break;
             }
  
         case jpiKey:
             if (JsonbType(jb) == jbvObject)
             {
                 JsonbValue *v;
                 JsonbValue  key;
  
                 key.type = jbvString;
                 key.val.string.val = jspGetString(jsp, &key.val.string.len);
  
                 v = findJsonbValueFromContainer(jb->val.binary.data,
                                                 JB_FOBJECT, &key);
  
                 if (v != NULL)
                 {
                     res = executeNextItem(cxt, jsp, NULL,
                                           v, found, false);
  
                     /* free value if it was not added to found list */
                     if (jspHasNext(jsp) || !found)
                         pfree(v);
                 }
                 else if (!jspIgnoreStructuralErrors(cxt))
                 {
                     Assert(found);
  
                     if (!jspThrowErrors(cxt))
                         return jperError;
  
                     ereport(ERROR,
                             (errcode(ERRCODE_SQL_JSON_MEMBER_NOT_FOUND), \
                              errmsg("JSON object does not contain key \"%s\"",
                                     pnstrdup(key.val.string.val,
                                              key.val.string.len))));
                 }
             }
             else if (unwrap && JsonbType(jb) == jbvArray)
                 return executeItemUnwrapTargetArray(cxt, jsp, jb, found, false);
             else if (!jspIgnoreStructuralErrors(cxt))
             {
                 Assert(found);
                 RETURN_ERROR(ereport(ERROR,
                                      (errcode(ERRCODE_SQL_JSON_MEMBER_NOT_FOUND),
                                       errmsg("jsonpath member accessor can only be applied to an object"))));
             }
             break;
  
         case jpiCurrent:
             res = executeNextItem(cxt, jsp, NULL, cxt->current,
                                   found, true);
             break;
  
         case jpiRoot:
             jb = cxt->root;
             baseObject = setBaseObject(cxt, jb, 0);
             res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             cxt->baseObject = baseObject;
             break;
  
         case jpiFilter:
             {
                 JsonPathBool st;
  
                 if (unwrap && JsonbType(jb) == jbvArray)
                     return executeItemUnwrapTargetArray(cxt, jsp, jb, found,
                                                         false);
  
                 jspGetArg(jsp, &elem);
                 st = executeNestedBoolItem(cxt, &elem, jb);
                 if (st != jpbTrue)
                     res = jperNotFound;
                 else
                     res = executeNextItem(cxt, jsp, NULL,
                                           jb, found, true);
                 break;
             }
  
         case jpiType:
             {
                 JsonbValue *jbv = palloc(sizeof(*jbv));
  
                 jbv->type = jbvString;
                 jbv->val.string.val = pstrdup(JsonbTypeName(jb));
                 jbv->val.string.len = strlen(jbv->val.string.val);
  
                 res = executeNextItem(cxt, jsp, NULL, jbv,
                                       found, false);
             }
             break;
  
         case jpiSize:
             {
                 int         size = JsonbArraySize(jb);
  
                 if (size < 0)
                 {
                     if (!jspAutoWrap(cxt))
                     {
                         if (!jspIgnoreStructuralErrors(cxt))
                             RETURN_ERROR(ereport(ERROR,
                                                  (errcode(ERRCODE_SQL_JSON_ARRAY_NOT_FOUND),
                                                   errmsg("jsonpath item method .%s() can only be applied to an array",
                                                          jspOperationName(jsp->type)))));
                         break;
                     }
  
                     size = 1;
                 }
  
                 jb = palloc(sizeof(*jb));
  
                 jb->type = jbvNumeric;
                 jb->val.numeric = int64_to_numeric(size);
  
                 res = executeNextItem(cxt, jsp, NULL, jb, found, false);
             }
             break;
  
         case jpiAbs:
             return executeNumericItemMethod(cxt, jsp, jb, unwrap, numeric_abs,
                                             found);
  
         case jpiFloor:
             return executeNumericItemMethod(cxt, jsp, jb, unwrap, numeric_floor,
                                             found);
  
         case jpiCeiling:
             return executeNumericItemMethod(cxt, jsp, jb, unwrap, numeric_ceil,
                                             found);
  
         case jpiDouble:
             {
                 JsonbValue  jbv;
  
                 if (unwrap && JsonbType(jb) == jbvArray)
                     return executeItemUnwrapTargetArray(cxt, jsp, jb, found,
                                                         false);
  
                 if (jb->type == jbvNumeric)
                 {
                     char       *tmp = DatumGetCString(DirectFunctionCall1(numeric_out,
                                                                           NumericGetDatum(jb->val.numeric)));
                     double      val;
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
  
                     val = float8in_internal(tmp,
                                             NULL,
                                             "double precision",
                                             tmp,
                                             (Node *) &escontext);
  
                     if (escontext.error_occurred)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type double precision",
                                                      tmp, jspOperationName(jsp->type)))));
                     if (isinf(val) || isnan(val))
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("NaN or Infinity is not allowed for jsonpath item method .%s()",
                                                      jspOperationName(jsp->type)))));
                     res = jperOk;
                 }
                 else if (jb->type == jbvString)
                 {
                     /* cast string as double */
                     double      val;
                     char       *tmp = pnstrdup(jb->val.string.val,
                                                jb->val.string.len);
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
  
                     val = float8in_internal(tmp,
                                             NULL,
                                             "double precision",
                                             tmp,
                                             (Node *) &escontext);
  
                     if (escontext.error_occurred)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type double precision",
                                                      tmp, jspOperationName(jsp->type)))));
                     if (isinf(val) || isnan(val))
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("NaN or Infinity is not allowed for jsonpath item method .%s()",
                                                      jspOperationName(jsp->type)))));
  
                     jb = &jbv;
                     jb->type = jbvNumeric;
                     jb->val.numeric = DatumGetNumeric(DirectFunctionCall1(float8_numeric,
                                                                           Float8GetDatum(val)));
                     res = jperOk;
                 }
  
                 if (res == jperNotFound)
                     RETURN_ERROR(ereport(ERROR,
                                          (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                           errmsg("jsonpath item method .%s() can only be applied to a string or numeric value",
                                                  jspOperationName(jsp->type)))));
  
                 res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             }
             break;
  
         case jpiDatetime:
         case jpiDate:
         case jpiTime:
         case jpiTimeTz:
         case jpiTimestamp:
         case jpiTimestampTz:
             if (unwrap && JsonbType(jb) == jbvArray)
                 return executeItemUnwrapTargetArray(cxt, jsp, jb, found, false);
  
             return executeDateTimeMethod(cxt, jsp, jb, found);
  
         case jpiKeyValue:
             if (unwrap && JsonbType(jb) == jbvArray)
                 return executeItemUnwrapTargetArray(cxt, jsp, jb, found, false);
  
             return executeKeyValueMethod(cxt, jsp, jb, found);
  
         case jpiLast:
             {
                 JsonbValue  tmpjbv;
                 JsonbValue *lastjbv;
                 int         last;
                 bool        hasNext = jspGetNext(jsp, &elem);
  
                 if (cxt->innermostArraySize < 0)
                     elog(ERROR, "evaluating jsonpath LAST outside of array subscript");
  
                 if (!hasNext && !found)
                 {
                     res = jperOk;
                     break;
                 }
  
                 last = cxt->innermostArraySize - 1;
  
                 lastjbv = hasNext ? &tmpjbv : palloc(sizeof(*lastjbv));
  
                 lastjbv->type = jbvNumeric;
                 lastjbv->val.numeric = int64_to_numeric(last);
  
                 res = executeNextItem(cxt, jsp, &elem,
                                       lastjbv, found, hasNext);
             }
             break;
  
         case jpiBigint:
             {
                 JsonbValue  jbv;
                 Datum       datum;
  
                 if (unwrap && JsonbType(jb) == jbvArray)
                     return executeItemUnwrapTargetArray(cxt, jsp, jb, found,
                                                         false);
  
                 if (jb->type == jbvNumeric)
                 {
                     bool        have_error;
                     int64       val;
  
                     val = numeric_int8_opt_error(jb->val.numeric, &have_error);
                     if (have_error)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type bigint",
                                                      DatumGetCString(DirectFunctionCall1(numeric_out,
                                                                                          NumericGetDatum(jb->val.numeric))),
                                                      jspOperationName(jsp->type)))));
  
                     datum = Int64GetDatum(val);
                     res = jperOk;
                 }
                 else if (jb->type == jbvString)
                 {
                     /* cast string as bigint */
                     char       *tmp = pnstrdup(jb->val.string.val,
                                                jb->val.string.len);
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
                     bool        noerr;
  
                     noerr = DirectInputFunctionCallSafe(int8in, tmp,
                                                         InvalidOid, -1,
                                                         (Node *) &escontext,
                                                         &datum);
  
                     if (!noerr || escontext.error_occurred)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type bigint",
                                                      tmp, jspOperationName(jsp->type)))));
                     res = jperOk;
                 }
  
                 if (res == jperNotFound)
                     RETURN_ERROR(ereport(ERROR,
                                          (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                           errmsg("jsonpath item method .%s() can only be applied to a string or numeric value",
                                                  jspOperationName(jsp->type)))));
  
                 jb = &jbv;
                 jb->type = jbvNumeric;
                 jb->val.numeric = DatumGetNumeric(DirectFunctionCall1(int8_numeric,
                                                                       datum));
  
                 res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             }
             break;
  
         case jpiBoolean:
             {
                 JsonbValue  jbv;
                 bool        bval;
  
                 if (unwrap && JsonbType(jb) == jbvArray)
                     return executeItemUnwrapTargetArray(cxt, jsp, jb, found,
                                                         false);
  
                 if (jb->type == jbvBool)
                 {
                     bval = jb->val.boolean;
  
                     res = jperOk;
                 }
                 else if (jb->type == jbvNumeric)
                 {
                     int         ival;
                     Datum       datum;
                     bool        noerr;
                     char       *tmp = DatumGetCString(DirectFunctionCall1(numeric_out,
                                                                           NumericGetDatum(jb->val.numeric)));
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
  
                     noerr = DirectInputFunctionCallSafe(int4in, tmp,
                                                         InvalidOid, -1,
                                                         (Node *) &escontext,
                                                         &datum);
  
                     if (!noerr || escontext.error_occurred)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type boolean",
                                                      tmp, jspOperationName(jsp->type)))));
  
                     ival = DatumGetInt32(datum);
                     if (ival == 0)
                         bval = false;
                     else
                         bval = true;
  
                     res = jperOk;
                 }
                 else if (jb->type == jbvString)
                 {
                     /* cast string as boolean */
                     char       *tmp = pnstrdup(jb->val.string.val,
                                                jb->val.string.len);
  
                     if (!parse_bool(tmp, &bval))
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type boolean",
                                                      tmp, jspOperationName(jsp->type)))));
  
                     res = jperOk;
                 }
  
                 if (res == jperNotFound)
                     RETURN_ERROR(ereport(ERROR,
                                          (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                           errmsg("jsonpath item method .%s() can only be applied to a boolean, string, or numeric value",
                                                  jspOperationName(jsp->type)))));
  
                 jb = &jbv;
                 jb->type = jbvBool;
                 jb->val.boolean = bval;
  
                 res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             }
             break;
  
         case jpiDecimal:
         case jpiNumber:
             {
                 JsonbValue  jbv;
                 Numeric     num;
                 char       *numstr = NULL;
  
                 if (unwrap && JsonbType(jb) == jbvArray)
                     return executeItemUnwrapTargetArray(cxt, jsp, jb, found,
                                                         false);
  
                 if (jb->type == jbvNumeric)
                 {
                     num = jb->val.numeric;
                     if (numeric_is_nan(num) || numeric_is_inf(num))
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("NaN or Infinity is not allowed for jsonpath item method .%s()",
                                                      jspOperationName(jsp->type)))));
  
                     if (jsp->type == jpiDecimal)
                         numstr = DatumGetCString(DirectFunctionCall1(numeric_out,
                                                                      NumericGetDatum(num)));
                     res = jperOk;
                 }
                 else if (jb->type == jbvString)
                 {
                     /* cast string as number */
                     Datum       datum;
                     bool        noerr;
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
  
                     numstr = pnstrdup(jb->val.string.val, jb->val.string.len);
  
                     noerr = DirectInputFunctionCallSafe(numeric_in, numstr,
                                                         InvalidOid, -1,
                                                         (Node *) &escontext,
                                                         &datum);
  
                     if (!noerr || escontext.error_occurred)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type numeric",
                                                      numstr, jspOperationName(jsp->type)))));
  
                     num = DatumGetNumeric(datum);
                     if (numeric_is_nan(num) || numeric_is_inf(num))
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("NaN or Infinity is not allowed for jsonpath item method .%s()",
                                                      jspOperationName(jsp->type)))));
  
                     res = jperOk;
                 }
  
                 if (res == jperNotFound)
                     RETURN_ERROR(ereport(ERROR,
                                          (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                           errmsg("jsonpath item method .%s() can only be applied to a string or numeric value",
                                                  jspOperationName(jsp->type)))));
  
                 /*
                  * If we have arguments, then they must be the precision and
                  * optional scale used in .decimal().  Convert them to the
                  * typmod equivalent and then truncate the numeric value per
                  * this typmod details.
                  */
                 if (jsp->type == jpiDecimal && jsp->content.args.left)
                 {
                     Datum       numdatum;
                     Datum       dtypmod;
                     int32       precision;
                     int32       scale = 0;
                     bool        have_error;
                     bool        noerr;
                     ArrayType  *arrtypmod;
                     Datum       datums[2];
                     char        pstr[12];   /* sign, 10 digits and '\0' */
                     char        sstr[12];   /* sign, 10 digits and '\0' */
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
  
                     jspGetLeftArg(jsp, &elem);
                     if (elem.type != jpiNumeric)
                         elog(ERROR, "invalid jsonpath item type for .decimal() precision");
  
                     precision = numeric_int4_opt_error(jspGetNumeric(&elem),
                                                        &have_error);
                     if (have_error)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("precision of jsonpath item method .%s() is out of range for type integer",
                                                      jspOperationName(jsp->type)))));
  
                     if (jsp->content.args.right)
                     {
                         jspGetRightArg(jsp, &elem);
                         if (elem.type != jpiNumeric)
                             elog(ERROR, "invalid jsonpath item type for .decimal() scale");
  
                         scale = numeric_int4_opt_error(jspGetNumeric(&elem),
                                                        &have_error);
                         if (have_error)
                             RETURN_ERROR(ereport(ERROR,
                                                  (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                                   errmsg("scale of jsonpath item method .%s() is out of range for type integer",
                                                          jspOperationName(jsp->type)))));
                     }
  
                     /*
                      * numerictypmodin() takes the precision and scale in the
                      * form of CString arrays.
                      */
                     pg_ltoa(precision, pstr);
                     datums[0] = CStringGetDatum(pstr);
                     pg_ltoa(scale, sstr);
                     datums[1] = CStringGetDatum(sstr);
                     arrtypmod = construct_array_builtin(datums, 2, CSTRINGOID);
  
                     dtypmod = DirectFunctionCall1(numerictypmodin,
                                                   PointerGetDatum(arrtypmod));
  
                     /* Convert numstr to Numeric with typmod */
                     Assert(numstr != NULL);
                     noerr = DirectInputFunctionCallSafe(numeric_in, numstr,
                                                         InvalidOid, dtypmod,
                                                         (Node *) &escontext,
                                                         &numdatum);
  
                     if (!noerr || escontext.error_occurred)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type numeric",
                                                      numstr, jspOperationName(jsp->type)))));
  
                     num = DatumGetNumeric(numdatum);
                     pfree(arrtypmod);
                 }
  
                 jb = &jbv;
                 jb->type = jbvNumeric;
                 jb->val.numeric = num;
  
                 res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             }
             break;
  
         case jpiInteger:
             {
                 JsonbValue  jbv;
                 Datum       datum;
  
                 if (unwrap && JsonbType(jb) == jbvArray)
                     return executeItemUnwrapTargetArray(cxt, jsp, jb, found,
                                                         false);
  
                 if (jb->type == jbvNumeric)
                 {
                     bool        have_error;
                     int32       val;
  
                     val = numeric_int4_opt_error(jb->val.numeric, &have_error);
                     if (have_error)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type integer",
                                                      DatumGetCString(DirectFunctionCall1(numeric_out,
                                                                                          NumericGetDatum(jb->val.numeric))),
                                                      jspOperationName(jsp->type)))));
  
                     datum = Int32GetDatum(val);
                     res = jperOk;
                 }
                 else if (jb->type == jbvString)
                 {
                     /* cast string as integer */
                     char       *tmp = pnstrdup(jb->val.string.val,
                                                jb->val.string.len);
                     ErrorSaveContext escontext = {T_ErrorSaveContext};
                     bool        noerr;
  
                     noerr = DirectInputFunctionCallSafe(int4in, tmp,
                                                         InvalidOid, -1,
                                                         (Node *) &escontext,
                                                         &datum);
  
                     if (!noerr || escontext.error_occurred)
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("argument \"%s\" of jsonpath item method .%s() is invalid for type integer",
                                                      tmp, jspOperationName(jsp->type)))));
                     res = jperOk;
                 }
  
                 if (res == jperNotFound)
                     RETURN_ERROR(ereport(ERROR,
                                          (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                           errmsg("jsonpath item method .%s() can only be applied to a string or numeric value",
                                                  jspOperationName(jsp->type)))));
  
                 jb = &jbv;
                 jb->type = jbvNumeric;
                 jb->val.numeric = DatumGetNumeric(DirectFunctionCall1(int4_numeric,
                                                                       datum));
  
                 res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             }
             break;
  
         case jpiStringFunc:
             {
                 JsonbValue  jbv;
                 char       *tmp = NULL;
  
                 if (unwrap && JsonbType(jb) == jbvArray)
                     return executeItemUnwrapTargetArray(cxt, jsp, jb, found, false);
  
                 switch (JsonbType(jb))
                 {
                     case jbvString:
  
                         /*
                          * Value is not necessarily null-terminated, so we do
                          * pnstrdup() here.
                          */
                         tmp = pnstrdup(jb->val.string.val,
                                        jb->val.string.len);
                         break;
                     case jbvNumeric:
                         tmp = DatumGetCString(DirectFunctionCall1(numeric_out,
                                                                   NumericGetDatum(jb->val.numeric)));
                         break;
                     case jbvBool:
                         tmp = (jb->val.boolean) ? "true" : "false";
                         break;
                     case jbvDatetime:
                         {
                             switch (jb->val.datetime.typid)
                             {
                                 case DATEOID:
                                     tmp = DatumGetCString(DirectFunctionCall1(date_out,
                                                                               jb->val.datetime.value));
                                     break;
                                 case TIMEOID:
                                     tmp = DatumGetCString(DirectFunctionCall1(time_out,
                                                                               jb->val.datetime.value));
                                     break;
                                 case TIMETZOID:
                                     tmp = DatumGetCString(DirectFunctionCall1(timetz_out,
                                                                               jb->val.datetime.value));
                                     break;
                                 case TIMESTAMPOID:
                                     tmp = DatumGetCString(DirectFunctionCall1(timestamp_out,
                                                                               jb->val.datetime.value));
                                     break;
                                 case TIMESTAMPTZOID:
                                     tmp = DatumGetCString(DirectFunctionCall1(timestamptz_out,
                                                                               jb->val.datetime.value));
                                     break;
                                 default:
                                     elog(ERROR, "unrecognized SQL/JSON datetime type oid: %u",
                                          jb->val.datetime.typid);
                             }
                         }
                         break;
                     case jbvNull:
                     case jbvArray:
                     case jbvObject:
                     case jbvBinary:
                         RETURN_ERROR(ereport(ERROR,
                                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                                               errmsg("jsonpath item method .%s() can only be applied to a boolean, string, numeric, or datetime value",
                                                      jspOperationName(jsp->type)))));
                         break;
                 }
  
                 jb = &jbv;
                 Assert(tmp != NULL);    /* We must have set tmp above */
                 jb->val.string.val = tmp;
                 jb->val.string.len = strlen(jb->val.string.val);
                 jb->type = jbvString;
  
                 res = executeNextItem(cxt, jsp, NULL, jb, found, true);
             }
             break;
  
         default:
             elog(ERROR, "unrecognized jsonpath item type: %d", jsp->type);
     }
  
     return res;
 }

References JsonPathItem::anybounds, appendBoolResult(), JsonPathItem::args, JsonPathItem::array, Assert, JsonPathExecContext::baseObject, CHECK_FOR_INTERRUPTS, check_stack_depth(), construct_array_builtin(), JsonPathItem::content, CStringGetDatum(), JsonPathExecContext::current, date_out(), DatumGetCString(), DatumGetInt32(), DatumGetNumeric(), DirectFunctionCall1, DirectInputFunctionCallSafe(), elog, ereport, errcode(), errmsg(), ERROR, ErrorSaveContext::error_occurred, executeAnyItem(), executeBinaryArithmExpr(), executeBoolItem(), executeDateTimeMethod(), executeItemUnwrapTargetArray(), executeKeyValueMethod(), executeNestedBoolItem(), executeNextItem(), executeNumericItemMethod(), executeUnaryArithmExpr(), findJsonbValueFromContainer(), float8_numeric(), Float8GetDatum(), float8in_internal(), getArrayIndex(), getIthJsonbValueFromContainer(), getJsonPathItem(), i, JsonPathExecContext::ignoreStructuralErrors, JsonPathExecContext::innermostArraySize, Int32GetDatum(), int4_numeric(), int4in(), int64_to_numeric(), Int64GetDatum(), int8_numeric(), int8in(), InvalidOid, JB_FOBJECT, jbvArray, jbvBinary, jbvBool, jbvDatetime, jbvNull, jbvNumeric, jbvObject, jbvString, jpbTrue, jperError, jperIsError, jperNotFound, jperOk, jpiAbs, jpiAdd, jpiAnd, jpiAny, jpiAnyArray, jpiAnyKey, jpiBigint, jpiBool, jpiBoolean, jpiCeiling, jpiCurrent, jpiDate, jpiDatetime, jpiDecimal, jpiDiv, jpiDouble, jpiEqual, jpiExists, jpiFilter, jpiFloor, jpiGreater, jpiGreaterOrEqual, jpiIndexArray, jpiInteger, jpiIsUnknown, jpiKey, jpiKeyValue, jpiLast, jpiLess, jpiLessOrEqual, jpiLikeRegex, jpiMinus, jpiMod, jpiMul, jpiNot, jpiNotEqual, jpiNull, jpiNumber, jpiNumeric, jpiOr, jpiPlus, jpiRoot, jpiSize, jpiStartsWith, jpiString, jpiStringFunc, jpiSub, jpiTime, jpiTimestamp, jpiTimestampTz, jpiTimeTz, jpiType, jpiVariable, JsonbArraySize(), JsonbType(), JsonbTypeName(), jspAutoUnwrap, jspAutoWrap, jspGetArg(), jspGetArraySubscript(), jspGetLeftArg(), jspGetNext(), jspGetNumeric(), jspGetRightArg(), jspGetString(), jspHasNext, jspIgnoreStructuralErrors, jspOperationName(), jspThrowErrors, sort-test::key, numeric_abs(), numeric_add_opt_error(), numeric_ceil(), numeric_div_opt_error(), numeric_floor(), numeric_in(), numeric_int4_opt_error(), numeric_int8_opt_error(), numeric_is_inf(), numeric_is_nan(), numeric_mod_opt_error(), numeric_mul_opt_error(), numeric_out(), numeric_sub_opt_error(), numeric_uminus(), NumericGetDatum(), numerictypmodin(), palloc(), parse_bool(), pfree(), pg_ltoa(), pnstrdup(), PointerGetDatum(), pstrdup(), range(), res, RETURN_ERROR, JsonPathExecContext::root, scale, setBaseObject(), size, time_out(), timestamp_out(), timestamptz_out(), timetz_out(), JsonbValue::type, JsonPathItem::type, JsonbValue::val, and val.

Referenced by executeAnyItem(), and executeItem().

◆ executeItemUnwrapTargetArray()

static JsonPathExecResult executeItemUnwrapTargetArray	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		JsonValueList *	found,
		bool	unwrapElements
	)

static

Definition at line 1692 of file jsonpath_exec.c.

 {
     if (jb->type != jbvBinary)
     {
         Assert(jb->type != jbvArray);
         elog(ERROR, "invalid jsonb array value type: %d", jb->type);
     }
  
     return executeAnyItem
         (cxt, jsp, jb->val.binary.data, found, 1, 1, 1,
          false, unwrapElements);
 }

References Assert, elog, ERROR, executeAnyItem(), jbvArray, jbvBinary, JsonbValue::type, and JsonbValue::val.

Referenced by executeItemOptUnwrapResult(), executeItemOptUnwrapTarget(), and executeNumericItemMethod().

◆ executeJsonPath()

static JsonPathExecResult executeJsonPath	(	JsonPath *	path,
		void *	vars,
		JsonPathGetVarCallback	getVar,
		JsonPathCountVarsCallback	countVars,
		Jsonb *	json,
		bool	throwErrors,
		JsonValueList *	result,
		bool	useTz
	)

static

Definition at line 678 of file jsonpath_exec.c.

 {
     JsonPathExecContext cxt;
     JsonPathExecResult res;
     JsonPathItem jsp;
     JsonbValue  jbv;
  
     jspInit(&jsp, path);
  
     if (!JsonbExtractScalar(&json->root, &jbv))
         JsonbInitBinary(&jbv, json);
  
     cxt.vars = vars;
     cxt.getVar = getVar;
     cxt.laxMode = (path->header & JSONPATH_LAX) != 0;
     cxt.ignoreStructuralErrors = cxt.laxMode;
     cxt.root = &jbv;
     cxt.current = &jbv;
     cxt.baseObject.jbc = NULL;
     cxt.baseObject.id = 0;
     /* 1 + number of base objects in vars */
     cxt.lastGeneratedObjectId = 1 + countVars(vars);
     cxt.innermostArraySize = -1;
     cxt.throwErrors = throwErrors;
     cxt.useTz = useTz;
  
     if (jspStrictAbsenceOfErrors(&cxt) && !result)
     {
         /*
          * In strict mode we must get a complete list of values to check that
          * there are no errors at all.
          */
         JsonValueList vals = {0};
  
         res = executeItem(&cxt, &jsp, &jbv, &vals);
  
         if (jperIsError(res))
             return res;
  
         return JsonValueListIsEmpty(&vals) ? jperNotFound : jperOk;
     }
  
     res = executeItem(&cxt, &jsp, &jbv, result);
  
     Assert(!throwErrors || !jperIsError(res));
  
     return res;
 }

Referenced by jsonb_path_exists_internal(), jsonb_path_match_internal(), jsonb_path_query_array_internal(), jsonb_path_query_first_internal(), jsonb_path_query_internal(), JsonPathExists(), JsonPathQuery(), JsonPathValue(), and JsonTableResetRowPattern().

◆ executeKeyValueMethod()

static JsonPathExecResult executeKeyValueMethod	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		JsonValueList *	found
	)

static

Definition at line 2838 of file jsonpath_exec.c.

 {
     JsonPathExecResult res = jperNotFound;
     JsonPathItem next;
     JsonbContainer *jbc;
     JsonbValue  key;
     JsonbValue  val;
     JsonbValue  idval;
     JsonbValue  keystr;
     JsonbValue  valstr;
     JsonbValue  idstr;
     JsonbIterator *it;
     JsonbIteratorToken tok;
     int64       id;
     bool        hasNext;
  
     if (JsonbType(jb) != jbvObject || jb->type != jbvBinary)
         RETURN_ERROR(ereport(ERROR,
                              (errcode(ERRCODE_SQL_JSON_OBJECT_NOT_FOUND),
                               errmsg("jsonpath item method .%s() can only be applied to an object",
                                      jspOperationName(jsp->type)))));
  
     jbc = jb->val.binary.data;
  
     if (!JsonContainerSize(jbc))
         return jperNotFound;    /* no key-value pairs */
  
     hasNext = jspGetNext(jsp, &next);
  
     keystr.type = jbvString;
     keystr.val.string.val = "key";
     keystr.val.string.len = 3;
  
     valstr.type = jbvString;
     valstr.val.string.val = "value";
     valstr.val.string.len = 5;
  
     idstr.type = jbvString;
     idstr.val.string.val = "id";
     idstr.val.string.len = 2;
  
     /* construct object id from its base object and offset inside that */
     id = jb->type != jbvBinary ? 0 :
         (int64) ((char *) jbc - (char *) cxt->baseObject.jbc);
     id += (int64) cxt->baseObject.id * INT64CONST(10000000000);
  
     idval.type = jbvNumeric;
     idval.val.numeric = int64_to_numeric(id);
  
     it = JsonbIteratorInit(jbc);
  
     while ((tok = JsonbIteratorNext(&it, &key, true)) != WJB_DONE)
     {
         JsonBaseObjectInfo baseObject;
         JsonbValue  obj;
         JsonbParseState *ps;
         JsonbValue *keyval;
         Jsonb      *jsonb;
  
         if (tok != WJB_KEY)
             continue;
  
         res = jperOk;
  
         if (!hasNext && !found)
             break;
  
         tok = JsonbIteratorNext(&it, &val, true);
         Assert(tok == WJB_VALUE);
  
         ps = NULL;
         pushJsonbValue(&ps, WJB_BEGIN_OBJECT, NULL);
  
         pushJsonbValue(&ps, WJB_KEY, &keystr);
         pushJsonbValue(&ps, WJB_VALUE, &key);
  
         pushJsonbValue(&ps, WJB_KEY, &valstr);
         pushJsonbValue(&ps, WJB_VALUE, &val);
  
         pushJsonbValue(&ps, WJB_KEY, &idstr);
         pushJsonbValue(&ps, WJB_VALUE, &idval);
  
         keyval = pushJsonbValue(&ps, WJB_END_OBJECT, NULL);
  
         jsonb = JsonbValueToJsonb(keyval);
  
         JsonbInitBinary(&obj, jsonb);
  
         baseObject = setBaseObject(cxt, &obj, cxt->lastGeneratedObjectId++);
  
         res = executeNextItem(cxt, jsp, &next, &obj, found, true);
  
         cxt->baseObject = baseObject;
  
         if (jperIsError(res))
             return res;
  
         if (res == jperOk && !found)
             break;
     }
  
     return res;
 }

References Assert, JsonPathExecContext::baseObject, ereport, errcode(), errmsg(), ERROR, executeNextItem(), JsonBaseObjectInfo::id, int64_to_numeric(), JsonBaseObjectInfo::jbc, jbvBinary, jbvNumeric, jbvObject, jbvString, jperIsError, jperNotFound, jperOk, JsonbInitBinary(), JsonbIteratorInit(), JsonbIteratorNext(), JsonbType(), JsonbValueToJsonb(), JsonContainerSize, jspGetNext(), jspOperationName(), sort-test::key, JsonPathExecContext::lastGeneratedObjectId, next, ps, pushJsonbValue(), res, RETURN_ERROR, setBaseObject(), JsonbValue::type, JsonPathItem::type, JsonbValue::val, val, WJB_BEGIN_OBJECT, WJB_DONE, WJB_END_OBJECT, WJB_KEY, and WJB_VALUE.

Referenced by executeItemOptUnwrapTarget().

◆ executeLikeRegex()

static JsonPathBool executeLikeRegex	(	JsonPathItem *	jsp,
		JsonbValue *	str,
		JsonbValue *	rarg,
		void *	param
	)

static

Definition at line 2285 of file jsonpath_exec.c.

 {
     JsonLikeRegexContext *cxt = param;
  
     if (!(str = getScalar(str, jbvString)))
         return jpbUnknown;
  
     /* Cache regex text and converted flags. */
     if (!cxt->regex)
     {
         cxt->regex =
             cstring_to_text_with_len(jsp->content.like_regex.pattern,
                                      jsp->content.like_regex.patternlen);
         (void) jspConvertRegexFlags(jsp->content.like_regex.flags,
                                     &(cxt->cflags), NULL);
     }
  
     if (RE_compile_and_execute(cxt->regex, str->val.string.val,
                                str->val.string.len,
                                cxt->cflags, DEFAULT_COLLATION_OID, 0, NULL))
         return jpbTrue;
  
     return jpbFalse;
 }

References JsonLikeRegexContext::cflags, JsonPathItem::content, cstring_to_text_with_len(), getScalar(), jbvString, jpbFalse, jpbTrue, jpbUnknown, jspConvertRegexFlags(), JsonPathItem::like_regex, RE_compile_and_execute(), JsonLikeRegexContext::regex, and str.

Referenced by executeBoolItem().

◆ executeNestedBoolItem()

static JsonPathBool executeNestedBoolItem	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb
	)

static

Definition at line 1931 of file jsonpath_exec.c.

 {
     JsonbValue *prev;
     JsonPathBool res;
  
     prev = cxt->current;
     cxt->current = jb;
     res = executeBoolItem(cxt, jsp, jb, false);
     cxt->current = prev;
  
     return res;
 }

References JsonPathExecContext::current, executeBoolItem(), and res.

Referenced by executeItemOptUnwrapTarget().

◆ executeNextItem()

static JsonPathExecResult executeNextItem	(	JsonPathExecContext *	cxt,
		JsonPathItem *	cur,
		JsonPathItem *	next,
		JsonbValue *	v,
		JsonValueList *	found,
		bool	copy
	)

static

Definition at line 1712 of file jsonpath_exec.c.

 {
     JsonPathItem elem;
     bool        hasNext;
  
     if (!cur)
         hasNext = next != NULL;
     else if (next)
         hasNext = jspHasNext(cur);
     else
     {
         next = &elem;
         hasNext = jspGetNext(cur, next);
     }
  
     if (hasNext)
         return executeItem(cxt, next, v, found);
  
     if (found)
         JsonValueListAppend(found, copy ? copyJsonbValue(v) : v);
  
     return jperOk;
 }

References copyJsonbValue(), cur, executeItem(), jperOk, JsonValueListAppend(), jspGetNext(), jspHasNext, and next.

Referenced by appendBoolResult(), executeBinaryArithmExpr(), executeDateTimeMethod(), executeItemOptUnwrapTarget(), executeKeyValueMethod(), executeNumericItemMethod(), and executeUnaryArithmExpr().

◆ executeNumericItemMethod()

static JsonPathExecResult executeNumericItemMethod	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		bool	unwrap,
		PGFunction	func,
		JsonValueList *	found
	)

static

Definition at line 2316 of file jsonpath_exec.c.

 {
     JsonPathItem next;
     Datum       datum;
  
     if (unwrap && JsonbType(jb) == jbvArray)
         return executeItemUnwrapTargetArray(cxt, jsp, jb, found, false);
  
     if (!(jb = getScalar(jb, jbvNumeric)))
         RETURN_ERROR(ereport(ERROR,
                              (errcode(ERRCODE_NON_NUMERIC_SQL_JSON_ITEM),
                               errmsg("jsonpath item method .%s() can only be applied to a numeric value",
                                      jspOperationName(jsp->type)))));
  
     datum = DirectFunctionCall1(func, NumericGetDatum(jb->val.numeric));
  
     if (!jspGetNext(jsp, &next) && !found)
         return jperOk;
  
     jb = palloc(sizeof(*jb));
     jb->type = jbvNumeric;
     jb->val.numeric = DatumGetNumeric(datum);
  
     return executeNextItem(cxt, jsp, &next, jb, found, false);
 }

References DatumGetNumeric(), DirectFunctionCall1, ereport, errcode(), errmsg(), ERROR, executeItemUnwrapTargetArray(), executeNextItem(), getScalar(), jbvArray, jbvNumeric, jperOk, JsonbType(), jspGetNext(), jspOperationName(), next, NumericGetDatum(), palloc(), RETURN_ERROR, JsonbValue::type, JsonPathItem::type, and JsonbValue::val.

Referenced by executeItemOptUnwrapTarget().

◆ executePredicate()

static JsonPathBool executePredicate	(	JsonPathExecContext *	cxt,
		JsonPathItem *	pred,
		JsonPathItem *	larg,
		JsonPathItem *	rarg,
		JsonbValue *	jb,
		bool	unwrapRightArg,
		JsonPathPredicateCallback	exec,
		void *	param
	)

static

Definition at line 2043 of file jsonpath_exec.c.

 {
     JsonPathExecResult res;
     JsonValueListIterator lseqit;
     JsonValueList lseq = {0};
     JsonValueList rseq = {0};
     JsonbValue *lval;
     bool        error = false;
     bool        found = false;
  
     /* Left argument is always auto-unwrapped. */
     res = executeItemOptUnwrapResultNoThrow(cxt, larg, jb, true, &lseq);
     if (jperIsError(res))
         return jpbUnknown;
  
     if (rarg)
     {
         /* Right argument is conditionally auto-unwrapped. */
         res = executeItemOptUnwrapResultNoThrow(cxt, rarg, jb,
                                                 unwrapRightArg, &rseq);
         if (jperIsError(res))
             return jpbUnknown;
     }
  
     JsonValueListInitIterator(&lseq, &lseqit);
     while ((lval = JsonValueListNext(&lseq, &lseqit)))
     {
         JsonValueListIterator rseqit;
         JsonbValue *rval;
         bool        first = true;
  
         JsonValueListInitIterator(&rseq, &rseqit);
         if (rarg)
             rval = JsonValueListNext(&rseq, &rseqit);
         else
             rval = NULL;
  
         /* Loop over right arg sequence or do single pass otherwise */
         while (rarg ? (rval != NULL) : first)
         {
             JsonPathBool res = exec(pred, lval, rval, param);
  
             if (res == jpbUnknown)
             {
                 if (jspStrictAbsenceOfErrors(cxt))
                     return jpbUnknown;
  
                 error = true;
             }
             else if (res == jpbTrue)
             {
                 if (!jspStrictAbsenceOfErrors(cxt))
                     return jpbTrue;
  
                 found = true;
             }
  
             first = false;
             if (rarg)
                 rval = JsonValueListNext(&rseq, &rseqit);
         }
     }
  
     if (found)                  /* possible only in strict mode */
         return jpbTrue;
  
     if (error)                  /* possible only in lax mode */
         return jpbUnknown;
  
     return jpbFalse;
 }

References error(), executeItemOptUnwrapResultNoThrow(), jpbFalse, jpbTrue, jpbUnknown, jperIsError, JsonValueListInitIterator(), JsonValueListNext(), jspStrictAbsenceOfErrors, and res.

Referenced by executeBoolItem().

◆ executeStartsWith()

static JsonPathBool executeStartsWith	(	JsonPathItem *	jsp,
		JsonbValue *	whole,
		JsonbValue *	initial,
		void *	param
	)

static

Definition at line 2261 of file jsonpath_exec.c.

 {
     if (!(whole = getScalar(whole, jbvString)))
         return jpbUnknown;      /* error */
  
     if (!(initial = getScalar(initial, jbvString)))
         return jpbUnknown;      /* error */
  
     if (whole->val.string.len >= initial->val.string.len &&
         !memcmp(whole->val.string.val,
                 initial->val.string.val,
                 initial->val.string.len))
         return jpbTrue;
  
     return jpbFalse;
 }

References getScalar(), jbvString, jpbFalse, jpbTrue, jpbUnknown, and JsonbValue::val.

Referenced by executeBoolItem().

◆ executeUnaryArithmExpr()

static JsonPathExecResult executeUnaryArithmExpr	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		PGFunction	func,
		JsonValueList *	found
	)

static

Definition at line 2194 of file jsonpath_exec.c.

 {
     JsonPathExecResult jper;
     JsonPathExecResult jper2;
     JsonPathItem elem;
     JsonValueList seq = {0};
     JsonValueListIterator it;
     JsonbValue *val;
     bool        hasNext;
  
     jspGetArg(jsp, &elem);
     jper = executeItemOptUnwrapResult(cxt, &elem, jb, true, &seq);
  
     if (jperIsError(jper))
         return jper;
  
     jper = jperNotFound;
  
     hasNext = jspGetNext(jsp, &elem);
  
     JsonValueListInitIterator(&seq, &it);
     while ((val = JsonValueListNext(&seq, &it)))
     {
         if ((val = getScalar(val, jbvNumeric)))
         {
             if (!found && !hasNext)
                 return jperOk;
         }
         else
         {
             if (!found && !hasNext)
                 continue;       /* skip non-numerics processing */
  
             RETURN_ERROR(ereport(ERROR,
                                  (errcode(ERRCODE_SQL_JSON_NUMBER_NOT_FOUND),
                                   errmsg("operand of unary jsonpath operator %s is not a numeric value",
                                          jspOperationName(jsp->type)))));
         }
  
         if (func)
             val->val.numeric =
                 DatumGetNumeric(DirectFunctionCall1(func,
                                                     NumericGetDatum(val->val.numeric)));
  
         jper2 = executeNextItem(cxt, jsp, &elem, val, found, false);
  
         if (jperIsError(jper2))
             return jper2;
  
         if (jper2 == jperOk)
         {
             if (!found)
                 return jperOk;
             jper = jperOk;
         }
     }
  
     return jper;
 }

References DatumGetNumeric(), DirectFunctionCall1, ereport, errcode(), errmsg(), ERROR, executeItemOptUnwrapResult(), executeNextItem(), getScalar(), jbvNumeric, jperIsError, jperNotFound, jperOk, JsonValueListInitIterator(), JsonValueListNext(), jspGetArg(), jspGetNext(), jspOperationName(), NumericGetDatum(), RETURN_ERROR, JsonPathItem::type, and val.

Referenced by executeItemOptUnwrapTarget().

◆ getArrayIndex()

static JsonPathExecResult getArrayIndex	(	JsonPathExecContext *	cxt,
		JsonPathItem *	jsp,
		JsonbValue *	jb,
		int32 *	index
	)

static

Definition at line 3477 of file jsonpath_exec.c.

 {
     JsonbValue *jbv;
     JsonValueList found = {0};
     JsonPathExecResult res = executeItem(cxt, jsp, jb, &found);
     Datum       numeric_index;
     bool        have_error = false;
  
     if (jperIsError(res))
         return res;
  
     if (JsonValueListLength(&found) != 1 ||
         !(jbv = getScalar(JsonValueListHead(&found), jbvNumeric)))
         RETURN_ERROR(ereport(ERROR,
                              (errcode(ERRCODE_INVALID_SQL_JSON_SUBSCRIPT),
                               errmsg("jsonpath array subscript is not a single numeric value"))));
  
     numeric_index = DirectFunctionCall2(numeric_trunc,
                                         NumericGetDatum(jbv->val.numeric),
                                         Int32GetDatum(0));
  
     *index = numeric_int4_opt_error(DatumGetNumeric(numeric_index),
                                     &have_error);
  
     if (have_error)
         RETURN_ERROR(ereport(ERROR,
                              (errcode(ERRCODE_INVALID_SQL_JSON_SUBSCRIPT),
                               errmsg("jsonpath array subscript is out of integer range"))));
  
     return jperOk;
 }

References DatumGetNumeric(), DirectFunctionCall2, ereport, errcode(), errmsg(), ERROR, executeItem(), getScalar(), Int32GetDatum(), jbvNumeric, jperIsError, jperOk, JsonValueListHead(), JsonValueListLength(), numeric_int4_opt_error(), numeric_trunc(), NumericGetDatum(), res, RETURN_ERROR, and JsonbValue::val.

Referenced by executeItemOptUnwrapTarget().

◆ getJsonPathItem()

static void getJsonPathItem	(	JsonPathExecContext *	cxt,
		JsonPathItem *	item,
		JsonbValue *	value
	)

static

Definition at line 2976 of file jsonpath_exec.c.

 {
     switch (item->type)
     {
         case jpiNull:
             value->type = jbvNull;
             break;
         case jpiBool:
             value->type = jbvBool;
             value->val.boolean = jspGetBool(item);
             break;
         case jpiNumeric:
             value->type = jbvNumeric;
             value->val.numeric = jspGetNumeric(item);
             break;
         case jpiString:
             value->type = jbvString;
             value->val.string.val = jspGetString(item,
                                                  &value->val.string.len);
             break;
         case jpiVariable:
             getJsonPathVariable(cxt, item, value);
             return;
         default:
             elog(ERROR, "unexpected jsonpath item type");
     }
 }

References elog, ERROR, getJsonPathVariable(), jbvBool, jbvNull, jbvNumeric, jbvString, jpiBool, jpiNull, jpiNumeric, jpiString, jpiVariable, jspGetBool(), jspGetNumeric(), jspGetString(), JsonPathItem::type, and value.

Referenced by executeItemOptUnwrapTarget().

◆ GetJsonPathVar()

static JsonbValue * GetJsonPathVar	(	void *	cxt,
		char *	varName,
		int	varNameLen,
		JsonbValue *	baseObject,
		int *	baseObjectId
	)

static

Definition at line 3009 of file jsonpath_exec.c.

 {
     JsonPathVariable *var = NULL;
     List       *vars = cxt;
     ListCell   *lc;
     JsonbValue *result;
     int         id = 1;
  
     foreach(lc, vars)
     {
         JsonPathVariable *curvar = lfirst(lc);
  
         if (curvar->namelen == varNameLen &&
             strncmp(curvar->name, varName, varNameLen) == 0)
         {
             var = curvar;
             break;
         }
  
         id++;
     }
  
     if (var == NULL)
     {
         *baseObjectId = -1;
         return NULL;
     }
  
     result = palloc(sizeof(JsonbValue));
     if (var->isnull)
     {
         *baseObjectId = 0;
         result->type = jbvNull;
     }
     else
         JsonItemFromDatum(var->value, var->typid, var->typmod, result);
  
     *baseObject = *result;
     *baseObjectId = id;
  
     return result;
 }

References JsonPathVariable::isnull, jbvNull, JsonItemFromDatum(), lfirst, JsonPathVariable::name, JsonPathVariable::namelen, palloc(), JsonbValue::type, JsonPathVariable::typid, JsonPathVariable::typmod, and JsonPathVariable::value.

Referenced by JsonPathExists(), JsonPathQuery(), JsonPathValue(), and JsonTableResetRowPattern().

◆ getJsonPathVariable()

static void getJsonPathVariable	(	JsonPathExecContext *	cxt,
		JsonPathItem *	variable,
		JsonbValue *	value
	)

static

Definition at line 3159 of file jsonpath_exec.c.

 {
     char       *varName;
     int         varNameLength;
     JsonbValue  baseObject;
     int         baseObjectId;
     JsonbValue *v;
  
     Assert(variable->type == jpiVariable);
     varName = jspGetString(variable, &varNameLength);
  
     if (cxt->vars == NULL ||
         (v = cxt->getVar(cxt->vars, varName, varNameLength,
                          &baseObject, &baseObjectId)) == NULL)
         ereport(ERROR,
                 (errcode(ERRCODE_UNDEFINED_OBJECT),
                  errmsg("could not find jsonpath variable \"%s\"",
                         pnstrdup(varName, varNameLength))));
  
     if (baseObjectId > 0)
     {
         *value = *v;
         setBaseObject(cxt, &baseObject, baseObjectId);
     }
 }

References Assert, ereport, errcode(), errmsg(), ERROR, JsonPathExecContext::getVar, jpiVariable, jspGetString(), pnstrdup(), setBaseObject(), variable::type, value, and JsonPathExecContext::vars.

Referenced by getJsonPathItem().

◆ getJsonPathVariableFromJsonb()

static JsonbValue * getJsonPathVariableFromJsonb	(	void *	varsJsonb,
		char *	varName,
		int	varNameLength,
		JsonbValue *	baseObject,
		int *	baseObjectId
	)

static

Definition at line 3191 of file jsonpath_exec.c.

 {
     Jsonb      *vars = varsJsonb;
     JsonbValue  tmp;
     JsonbValue *result;
  
     tmp.type = jbvString;
     tmp.val.string.val = varName;
     tmp.val.string.len = varNameLength;
  
     result = findJsonbValueFromContainer(&vars->root, JB_FOBJECT, &tmp);
  
     if (result == NULL)
     {
         *baseObjectId = -1;
         return NULL;
     }
  
     *baseObjectId = 1;
     JsonbInitBinary(baseObject, vars);
  
     return result;
 }

References findJsonbValueFromContainer(), JB_FOBJECT, jbvString, JsonbInitBinary(), JsonbValue::type, and JsonbValue::val.

Referenced by jsonb_path_exists_internal(), jsonb_path_match_internal(), jsonb_path_query_array_internal(), jsonb_path_query_first_internal(), and jsonb_path_query_internal().

◆ GetJsonTableExecContext()

static JsonTableExecContext* GetJsonTableExecContext	(	TableFuncScanState *	state,
		const char *	fname
	)

inlinestatic

Definition at line 4094 of file jsonpath_exec.c.

 {
     JsonTableExecContext *result;
  
     if (!IsA(state, TableFuncScanState))
         elog(ERROR, "%s called with invalid TableFuncScanState", fname);
     result = (JsonTableExecContext *) state->opaque;
     if (result->magic != JSON_TABLE_EXEC_CONTEXT_MAGIC)
         elog(ERROR, "%s called with invalid TableFuncScanState", fname);
  
     return result;
 }

References elog, ERROR, if(), IsA, JSON_TABLE_EXEC_CONTEXT_MAGIC, and JsonTableExecContext::magic.

Referenced by JsonTableDestroyOpaque(), JsonTableFetchRow(), JsonTableGetValue(), and JsonTableSetDocument().

◆ getScalar()

static JsonbValue * getScalar	(	JsonbValue *	scalar,
		enum jbvType	type
	)

static

Definition at line 3656 of file jsonpath_exec.c.

 {
     /* Scalars should be always extracted during jsonpath execution. */
     Assert(scalar->type != jbvBinary ||
            !JsonContainerIsScalar(scalar->val.binary.data));
  
     return scalar->type == type ? scalar : NULL;
 }

References Assert, jbvBinary, JsonContainerIsScalar, type, JsonbValue::type, and JsonbValue::val.

Referenced by executeBinaryArithmExpr(), executeDateTimeMethod(), executeLikeRegex(), executeNumericItemMethod(), executeStartsWith(), executeUnaryArithmExpr(), and getArrayIndex().

◆ jsonb_path_exists()

Datum jsonb_path_exists ( PG_FUNCTION_ARGS )

Definition at line 426 of file jsonpath_exec.c.

 {
     return jsonb_path_exists_internal(fcinfo, false);
 }

References jsonb_path_exists_internal().

◆ jsonb_path_exists_internal()

static Datum jsonb_path_exists_internal	(	FunctionCallInfo	fcinfo,
		bool	tz
	)

static

Definition at line 398 of file jsonpath_exec.c.

 {
     Jsonb      *jb = PG_GETARG_JSONB_P(0);
     JsonPath   *jp = PG_GETARG_JSONPATH_P(1);
     JsonPathExecResult res;
     Jsonb      *vars = NULL;
     bool        silent = true;
  
     if (PG_NARGS() == 4)
     {
         vars = PG_GETARG_JSONB_P(2);
         silent = PG_GETARG_BOOL(3);
     }
  
     res = executeJsonPath(jp, vars, getJsonPathVariableFromJsonb,
                           countVariablesFromJsonb,
                           jb, !silent, NULL, tz);
  
     PG_FREE_IF_COPY(jb, 0);
     PG_FREE_IF_COPY(jp, 1);
  
     if (jperIsError(res))
         PG_RETURN_NULL();
  
     PG_RETURN_BOOL(res == jperOk);
 }

References countVariablesFromJsonb(), executeJsonPath(), getJsonPathVariableFromJsonb(), jperIsError, jperOk, PG_FREE_IF_COPY, PG_GETARG_BOOL, PG_GETARG_JSONB_P, PG_GETARG_JSONPATH_P, PG_NARGS, PG_RETURN_BOOL, PG_RETURN_NULL, and res.

Referenced by jsonb_path_exists(), jsonb_path_exists_opr(), and jsonb_path_exists_tz().

◆ jsonb_path_exists_opr()

Datum jsonb_path_exists_opr ( PG_FUNCTION_ARGS )

Definition at line 443 of file jsonpath_exec.c.

 {
     /* just call the other one -- it can handle both cases */
     return jsonb_path_exists_internal(fcinfo, false);
 }

References jsonb_path_exists_internal().

◆ jsonb_path_exists_tz()

Datum jsonb_path_exists_tz ( PG_FUNCTION_ARGS )

Definition at line 432 of file jsonpath_exec.c.

 {
     return jsonb_path_exists_internal(fcinfo, true);
 }

References jsonb_path_exists_internal().

◆ jsonb_path_match()

Datum jsonb_path_match ( PG_FUNCTION_ARGS )

Definition at line 496 of file jsonpath_exec.c.

 {
     return jsonb_path_match_internal(fcinfo, false);
 }

References jsonb_path_match_internal().

◆ jsonb_path_match_internal()

static Datum jsonb_path_match_internal	(	FunctionCallInfo	fcinfo,
		bool	tz
	)

static

Definition at line 455 of file jsonpath_exec.c.

 {
     Jsonb      *jb = PG_GETARG_JSONB_P(0);
     JsonPath   *jp = PG_GETARG_JSONPATH_P(1);
     JsonValueList found = {0};
     Jsonb      *vars = NULL;
     bool        silent = true;
  
     if (PG_NARGS() == 4)
     {
         vars = PG_GETARG_JSONB_P(2);
         silent = PG_GETARG_BOOL(3);
     }
  
     (void) executeJsonPath(jp, vars, getJsonPathVariableFromJsonb,
                            countVariablesFromJsonb,
                            jb, !silent, &found, tz);
  
     PG_FREE_IF_COPY(jb, 0);
     PG_FREE_IF_COPY(jp, 1);
  
     if (JsonValueListLength(&found) == 1)
     {
         JsonbValue *jbv = JsonValueListHead(&found);
  
         if (jbv->type == jbvBool)
             PG_RETURN_BOOL(jbv->val.boolean);
  
         if (jbv->type == jbvNull)
             PG_RETURN_NULL();
     }
  
     if (!silent)
         ereport(ERROR,
                 (errcode(ERRCODE_SINGLETON_SQL_JSON_ITEM_REQUIRED),
                  errmsg("single boolean result is expected")));
  
     PG_RETURN_NULL();
 }

References countVariablesFromJsonb(), ereport, errcode(), errmsg(), ERROR, executeJsonPath(), getJsonPathVariableFromJsonb(), jbvBool, jbvNull, JsonValueListHead(), JsonValueListLength(), PG_FREE_IF_COPY, PG_GETARG_BOOL, PG_GETARG_JSONB_P, PG_GETARG_JSONPATH_P, PG_NARGS, PG_RETURN_BOOL, PG_RETURN_NULL, JsonbValue::type, and JsonbValue::val.

Referenced by jsonb_path_match(), jsonb_path_match_opr(), and jsonb_path_match_tz().

◆ jsonb_path_match_opr()

Datum jsonb_path_match_opr ( PG_FUNCTION_ARGS )

Definition at line 513 of file jsonpath_exec.c.

 {
     /* just call the other one -- it can handle both cases */
     return jsonb_path_match_internal(fcinfo, false);
 }

References jsonb_path_match_internal().

◆ jsonb_path_match_tz()

Datum jsonb_path_match_tz ( PG_FUNCTION_ARGS )

Definition at line 502 of file jsonpath_exec.c.

 {
     return jsonb_path_match_internal(fcinfo, true);
 }

References jsonb_path_match_internal().

◆ jsonb_path_query()

Datum jsonb_path_query ( PG_FUNCTION_ARGS )

Definition at line 573 of file jsonpath_exec.c.

 {
     return jsonb_path_query_internal(fcinfo, false);
 }

References jsonb_path_query_internal().

◆ jsonb_path_query_array()

Datum jsonb_path_query_array ( PG_FUNCTION_ARGS )

Definition at line 606 of file jsonpath_exec.c.

 {
     return jsonb_path_query_array_internal(fcinfo, false);
 }

References jsonb_path_query_array_internal().

◆ jsonb_path_query_array_internal()

static Datum jsonb_path_query_array_internal	(	FunctionCallInfo	fcinfo,
		bool	tz
	)

static

Definition at line 590 of file jsonpath_exec.c.

 {
     Jsonb      *jb = PG_GETARG_JSONB_P(0);
     JsonPath   *jp = PG_GETARG_JSONPATH_P(1);
     JsonValueList found = {0};
     Jsonb      *vars = PG_GETARG_JSONB_P(2);
     bool        silent = PG_GETARG_BOOL(3);
  
     (void) executeJsonPath(jp, vars, getJsonPathVariableFromJsonb,
                            countVariablesFromJsonb,
                            jb, !silent, &found, tz);
  
     PG_RETURN_JSONB_P(JsonbValueToJsonb(wrapItemsInArray(&found)));
 }

References countVariablesFromJsonb(), executeJsonPath(), getJsonPathVariableFromJsonb(), JsonbValueToJsonb(), PG_GETARG_BOOL, PG_GETARG_JSONB_P, PG_GETARG_JSONPATH_P, PG_RETURN_JSONB_P, and wrapItemsInArray().

Referenced by jsonb_path_query_array(), and jsonb_path_query_array_tz().

◆ jsonb_path_query_array_tz()

Datum jsonb_path_query_array_tz ( PG_FUNCTION_ARGS )

Definition at line 612 of file jsonpath_exec.c.

 {
     return jsonb_path_query_array_internal(fcinfo, true);
 }

References jsonb_path_query_array_internal().

◆ jsonb_path_query_first()

Datum jsonb_path_query_first ( PG_FUNCTION_ARGS )

Definition at line 642 of file jsonpath_exec.c.

 {
     return jsonb_path_query_first_internal(fcinfo, false);
 }

References jsonb_path_query_first_internal().

◆ jsonb_path_query_first_internal()

static Datum jsonb_path_query_first_internal	(	FunctionCallInfo	fcinfo,
		bool	tz
	)

static

Definition at line 623 of file jsonpath_exec.c.

 {
     Jsonb      *jb = PG_GETARG_JSONB_P(0);
     JsonPath   *jp = PG_GETARG_JSONPATH_P(1);
     JsonValueList found = {0};
     Jsonb      *vars = PG_GETARG_JSONB_P(2);
     bool        silent = PG_GETARG_BOOL(3);
  
     (void) executeJsonPath(jp, vars, getJsonPathVariableFromJsonb,
                            countVariablesFromJsonb,
                            jb, !silent, &found, tz);
  
     if (JsonValueListLength(&found) >= 1)
         PG_RETURN_JSONB_P(JsonbValueToJsonb(JsonValueListHead(&found)));
     else
         PG_RETURN_NULL();
 }

References countVariablesFromJsonb(), executeJsonPath(), getJsonPathVariableFromJsonb(), JsonbValueToJsonb(), JsonValueListHead(), JsonValueListLength(), PG_GETARG_BOOL, PG_GETARG_JSONB_P, PG_GETARG_JSONPATH_P, PG_RETURN_JSONB_P, and PG_RETURN_NULL.

Referenced by jsonb_path_query_first(), and jsonb_path_query_first_tz().

◆ jsonb_path_query_first_tz()

Datum jsonb_path_query_first_tz ( PG_FUNCTION_ARGS )

Definition at line 648 of file jsonpath_exec.c.

 {
     return jsonb_path_query_first_internal(fcinfo, true);
 }

References jsonb_path_query_first_internal().

◆ jsonb_path_query_internal()

static Datum jsonb_path_query_internal	(	FunctionCallInfo	fcinfo,
		bool	tz
	)

static

Definition at line 525 of file jsonpath_exec.c.

 {
     FuncCallContext *funcctx;
     List       *found;
     JsonbValue *v;
     ListCell   *c;
  
     if (SRF_IS_FIRSTCALL())
     {
         JsonPath   *jp;
         Jsonb      *jb;
         MemoryContext oldcontext;
         Jsonb      *vars;
         bool        silent;
         JsonValueList found = {0};
  
         funcctx = SRF_FIRSTCALL_INIT();
         oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
  
         jb = PG_GETARG_JSONB_P_COPY(0);
         jp = PG_GETARG_JSONPATH_P_COPY(1);
         vars = PG_GETARG_JSONB_P_COPY(2);
         silent = PG_GETARG_BOOL(3);
  
         (void) executeJsonPath(jp, vars, getJsonPathVariableFromJsonb,
                                countVariablesFromJsonb,
                                jb, !silent, &found, tz);
  
         funcctx->user_fctx = JsonValueListGetList(&found);
  
         MemoryContextSwitchTo(oldcontext);
     }
  
     funcctx = SRF_PERCALL_SETUP();
     found = funcctx->user_fctx;
  
     c = list_head(found);
  
     if (c == NULL)
         SRF_RETURN_DONE(funcctx);
  
     v = lfirst(c);
     funcctx->user_fctx = list_delete_first(found);
  
     SRF_RETURN_NEXT(funcctx, JsonbPGetDatum(JsonbValueToJsonb(v)));
 }

References countVariablesFromJsonb(), executeJsonPath(), getJsonPathVariableFromJsonb(), JsonbPGetDatum(), JsonbValueToJsonb(), JsonValueListGetList(), lfirst, list_delete_first(), list_head(), MemoryContextSwitchTo(), FuncCallContext::multi_call_memory_ctx, PG_GETARG_BOOL, PG_GETARG_JSONB_P_COPY, PG_GETARG_JSONPATH_P_COPY, SRF_FIRSTCALL_INIT, SRF_IS_FIRSTCALL, SRF_PERCALL_SETUP, SRF_RETURN_DONE, SRF_RETURN_NEXT, and FuncCallContext::user_fctx.

Referenced by jsonb_path_query(), and jsonb_path_query_tz().

◆ jsonb_path_query_tz()

Datum jsonb_path_query_tz ( PG_FUNCTION_ARGS )

Definition at line 579 of file jsonpath_exec.c.

 {
     return jsonb_path_query_internal(fcinfo, true);
 }

References jsonb_path_query_internal().

◆ JsonbArraySize()

static int JsonbArraySize ( JsonbValue * jb )

static

Definition at line 3243 of file jsonpath_exec.c.

 {
     Assert(jb->type != jbvArray);
  
     if (jb->type == jbvBinary)
     {
         JsonbContainer *jbc = jb->val.binary.data;
  
         if (JsonContainerIsArray(jbc) && !JsonContainerIsScalar(jbc))
             return JsonContainerSize(jbc);
     }
  
     return -1;
 }

References Assert, jbvArray, jbvBinary, JsonContainerIsArray, JsonContainerIsScalar, JsonContainerSize, JsonbValue::type, and JsonbValue::val.

Referenced by executeItemOptUnwrapTarget().

◆ JsonbInitBinary()

static JsonbValue * JsonbInitBinary	(	JsonbValue *	jbv,
		Jsonb *	jb
	)

static

Definition at line 3619 of file jsonpath_exec.c.

 {
     jbv->type = jbvBinary;
     jbv->val.binary.data = &jb->root;
     jbv->val.binary.len = VARSIZE_ANY_EXHDR(jb);
  
     return jbv;
 }

References jbvBinary, Jsonb::root, JsonbValue::type, JsonbValue::val, and VARSIZE_ANY_EXHDR.

Referenced by executeJsonPath(), executeKeyValueMethod(), getJsonPathVariableFromJsonb(), and JsonItemFromDatum().

◆ JsonbType()

static int JsonbType ( JsonbValue * jb )

static

Definition at line 3632 of file jsonpath_exec.c.

 {
     int         type = jb->type;
  
     if (jb->type == jbvBinary)
     {
         JsonbContainer *jbc = (void *) jb->val.binary.data;
  
         /* Scalars should be always extracted during jsonpath execution. */
         Assert(!JsonContainerIsScalar(jbc));
  
         if (JsonContainerIsObject(jbc))
             type = jbvObject;
         else if (JsonContainerIsArray(jbc))
             type = jbvArray;
         else
             elog(ERROR, "invalid jsonb container type: 0x%08x", jbc->header);
     }
  
     return type;
 }

References Assert, elog, ERROR, JsonbContainer::header, jbvArray, jbvBinary, jbvObject, JsonContainerIsArray, JsonContainerIsObject, JsonContainerIsScalar, type, JsonbValue::type, and JsonbValue::val.

Referenced by executeItemOptUnwrapResult(), executeItemOptUnwrapTarget(), executeKeyValueMethod(), and executeNumericItemMethod().

◆ JsonbValueInitNumericDatum()

static void JsonbValueInitNumericDatum	(	JsonbValue *	jbv,
		Datum	num
	)

static

Definition at line 3149 of file jsonpath_exec.c.

 {
     jbv->type = jbvNumeric;
     jbv->val.numeric = DatumGetNumeric(num);
 }

References DatumGetNumeric(), jbvNumeric, JsonbValue::type, and JsonbValue::val.

Referenced by JsonItemFromDatum().

◆ JsonItemFromDatum()

static void JsonItemFromDatum	(	Datum	val,
		Oid	typid,
		int32	typmod,
		JsonbValue *	res
	)

static

Definition at line 3067 of file jsonpath_exec.c.

 {
     switch (typid)
     {
         case BOOLOID:
             res->type = jbvBool;
             res->val.boolean = DatumGetBool(val);
             break;
         case NUMERICOID:
             JsonbValueInitNumericDatum(res, val);
             break;
         case INT2OID:
             JsonbValueInitNumericDatum(res, DirectFunctionCall1(int2_numeric, val));
             break;
         case INT4OID:
             JsonbValueInitNumericDatum(res, DirectFunctionCall1(int4_numeric, val));
             break;
         case INT8OID:
             JsonbValueInitNumericDatum(res, DirectFunctionCall1(int8_numeric, val));
             break;
         case FLOAT4OID:
             JsonbValueInitNumericDatum(res, DirectFunctionCall1(float4_numeric, val));
             break;
         case FLOAT8OID:
             JsonbValueInitNumericDatum(res, DirectFunctionCall1(float8_numeric, val));
             break;
         case TEXTOID:
         case VARCHAROID:
             res->type = jbvString;
             res->val.string.val = VARDATA_ANY(val);
             res->val.string.len = VARSIZE_ANY_EXHDR(val);
             break;
         case DATEOID:
         case TIMEOID:
         case TIMETZOID:
         case TIMESTAMPOID:
         case TIMESTAMPTZOID:
             res->type = jbvDatetime;
             res->val.datetime.value = val;
             res->val.datetime.typid = typid;
             res->val.datetime.typmod = typmod;
             res->val.datetime.tz = 0;
             break;
         case JSONBOID:
             {
                 JsonbValue *jbv = res;
                 Jsonb      *jb = DatumGetJsonbP(val);
  
                 if (JsonContainerIsScalar(&jb->root))
                 {
                     bool        result PG_USED_FOR_ASSERTS_ONLY;
  
                     result = JsonbExtractScalar(&jb->root, jbv);
                     Assert(result);
                 }
                 else
                     JsonbInitBinary(jbv, jb);
                 break;
             }
         case JSONOID:
             {
                 text       *txt = DatumGetTextP(val);
                 char       *str = text_to_cstring(txt);
                 Jsonb      *jb;
  
                 jb = DatumGetJsonbP(DirectFunctionCall1(jsonb_in,
                                                         CStringGetDatum(str)));
                 pfree(str);
  
                 JsonItemFromDatum(JsonbPGetDatum(jb), JSONBOID, -1, res);
                 break;
             }
         default:
             ereport(ERROR,
                     errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("could not convert value of type %s to jsonpath",
                            format_type_be(typid)));
     }
 }

References Assert, CStringGetDatum(), DatumGetBool(), DatumGetJsonbP(), DatumGetTextP, DirectFunctionCall1, ereport, errcode(), errmsg(), ERROR, float4_numeric(), float8_numeric(), format_type_be(), int2_numeric(), int4_numeric(), int8_numeric(), jbvBool, jbvDatetime, jbvString, jsonb_in(), JsonbExtractScalar(), JsonbInitBinary(), JsonbPGetDatum(), JsonbValueInitNumericDatum(), JsonContainerIsScalar, pfree(), PG_USED_FOR_ASSERTS_ONLY, res, Jsonb::root, str, text_to_cstring(), val, VARDATA_ANY, and VARSIZE_ANY_EXHDR.

Referenced by GetJsonPathVar().

◆ JsonPathExists()

bool JsonPathExists	(	Datum	jb,
		JsonPath *	jp,
		bool *	error,
		List *	vars
	)

Definition at line 3906 of file jsonpath_exec.c.

 {
     JsonPathExecResult res;
  
     res = executeJsonPath(jp, vars,
                           GetJsonPathVar, CountJsonPathVars,
                           DatumGetJsonbP(jb), !error, NULL, true);
  
     Assert(error || !jperIsError(res));
  
     if (error && jperIsError(res))
         *error = true;
  
     return res == jperOk;
 }

References Assert, CountJsonPathVars(), DatumGetJsonbP(), error(), executeJsonPath(), GetJsonPathVar(), jperIsError, jperOk, and res.

Referenced by ExecEvalJsonExprPath().

◆ JsonPathQuery()

Datum JsonPathQuery	(	Datum	jb,
		JsonPath *	jp,
		JsonWrapper	wrapper,
		bool *	empty,
		bool *	error,
		List *	vars,
		const char *	column_name
	)

Definition at line 3929 of file jsonpath_exec.c.

 {
     JsonbValue *singleton;
     bool        wrap;
     JsonValueList found = {0};
     JsonPathExecResult res;
     int         count;
  
     res = executeJsonPath(jp, vars,
                           GetJsonPathVar, CountJsonPathVars,
                           DatumGetJsonbP(jb), !error, &found, true);
     Assert(error || !jperIsError(res));
     if (error && jperIsError(res))
     {
         *error = true;
         *empty = false;
         return (Datum) 0;
     }
  
     /* WRAP or not? */
     count = JsonValueListLength(&found);
     singleton = count > 0 ? JsonValueListHead(&found) : NULL;
     if (singleton == NULL)
         wrap = false;
     else if (wrapper == JSW_NONE || wrapper == JSW_UNSPEC)
         wrap = false;
     else if (wrapper == JSW_UNCONDITIONAL)
         wrap = true;
     else if (wrapper == JSW_CONDITIONAL)
         wrap = count > 1 ||
             IsAJsonbScalar(singleton) ||
             (singleton->type == jbvBinary &&
              JsonContainerIsScalar(singleton->val.binary.data));
     else
     {
         elog(ERROR, "unrecognized json wrapper %d", (int) wrapper);
         wrap = false;
     }
  
     if (wrap)
         return JsonbPGetDatum(JsonbValueToJsonb(wrapItemsInArray(&found)));
  
     /* No wrapping means only one item is expected. */
     if (count > 1)
     {
         if (error)
         {
             *error = true;
             return (Datum) 0;
         }
  
         if (column_name)
             ereport(ERROR,
                     (errcode(ERRCODE_MORE_THAN_ONE_SQL_JSON_ITEM),
                      errmsg("JSON path expression for column \"%s\" should return single item without wrapper",
                             column_name),
                      errhint("Use the WITH WRAPPER clause to wrap SQL/JSON items into an array.")));
         else
             ereport(ERROR,
                     (errcode(ERRCODE_MORE_THAN_ONE_SQL_JSON_ITEM),
                      errmsg("JSON path expression in JSON_QUERY should return single item without wrapper"),
                      errhint("Use the WITH WRAPPER clause to wrap SQL/JSON items into an array.")));
     }
  
     if (singleton)
         return JsonbPGetDatum(JsonbValueToJsonb(singleton));
  
     *empty = true;
     return PointerGetDatum(NULL);
 }

References Assert, CountJsonPathVars(), DatumGetJsonbP(), elog, ereport, errcode(), errhint(), errmsg(), ERROR, error(), executeJsonPath(), GetJsonPathVar(), IsAJsonbScalar, jbvBinary, jperIsError, JsonbPGetDatum(), JsonbValueToJsonb(), JsonContainerIsScalar, JsonValueListHead(), JsonValueListLength(), JSW_CONDITIONAL, JSW_NONE, JSW_UNCONDITIONAL, JSW_UNSPEC, PointerGetDatum(), res, JsonbValue::type, JsonbValue::val, and wrapItemsInArray().

Referenced by ExecEvalJsonExprPath().

◆ JsonPathValue()

JsonbValue* JsonPathValue	(	Datum	jb,
		JsonPath *	jp,
		bool *

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

◆ jperIsError

◆ JSON_TABLE_EXEC_CONTEXT_MAGIC

◆ jspAutoUnwrap

◆ jspAutoWrap

◆ jspIgnoreStructuralErrors

◆ jspStrictAbsenceOfErrors

◆ jspThrowErrors

◆ RETURN_ERROR

Typedef Documentation

◆ BinaryArithmFunc

◆ JsonBaseObjectInfo

◆ JsonLikeRegexContext

◆ JsonPathBool

◆ JsonPathCountVarsCallback

◆ JsonPathExecContext

◆ JsonPathExecResult

◆ JsonPathGetVarCallback

◆ JsonPathPredicateCallback

◆ JsonTableExecContext

◆ JsonTablePlanRowSource

◆ JsonTablePlanState

◆ JsonValueList

◆ JsonValueListIterator

Enumeration Type Documentation

◆ JsonPathBool

◆ JsonPathExecResult

Function Documentation

◆ appendBoolResult()

◆ binaryCompareStrings()

◆ castTimeToTimeTz()

◆ checkTimezoneIsUsedForCast()

◆ cmpDateToTimestamp()

◆ cmpDateToTimestampTz()

◆ cmpTimestampToTimestampTz()

◆ compareDatetime()

◆ compareItems()

◆ compareNumeric()

◆ compareStrings()

◆ copyJsonbValue()

◆ CountJsonPathVars()

◆ countVariablesFromJsonb()

◆ executeAnyItem()

◆ executeBinaryArithmExpr()

◆ executeBoolItem()

◆ executeComparison()

◆ executeDateTimeMethod()

◆ executeItem()

◆ executeItemOptUnwrapResult()

◆ executeItemOptUnwrapResultNoThrow()

◆ executeItemOptUnwrapTarget()

◆ executeItemUnwrapTargetArray()

◆ executeJsonPath()

◆ executeKeyValueMethod()

◆ executeLikeRegex()

◆ executeNestedBoolItem()

◆ executeNextItem()

◆ executeNumericItemMethod()

◆ executePredicate()

◆ executeStartsWith()

◆ executeUnaryArithmExpr()

◆ getArrayIndex()

◆ getJsonPathItem()

◆ GetJsonPathVar()

◆ getJsonPathVariable()

◆ getJsonPathVariableFromJsonb()

◆ GetJsonTableExecContext()

◆ getScalar()

◆ jsonb_path_exists()

◆ jsonb_path_exists_internal()

◆ jsonb_path_exists_opr()

◆ jsonb_path_exists_tz()

◆ jsonb_path_match()

◆ jsonb_path_match_internal()