PostgreSQL Source Code  git master
jsonfuncs.h File Reference
#include "common/jsonapi.h"
#include "nodes/nodes.h"
#include "utils/jsonb.h"
Include dependency graph for jsonfuncs.h:
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Macros

#define pg_parse_json_or_ereport(lex, sem)    (void) pg_parse_json_or_errsave(lex, sem, NULL)
 

Typedefs

typedef enum JsonToIndex JsonToIndex
 
typedef void(* JsonIterateStringValuesAction) (void *state, char *elem_value, int elem_len)
 
typedef text *(* JsonTransformStringValuesAction) (void *state, char *elem_value, int elem_len)
 

Enumerations

enum  JsonToIndex {
  jtiKey = 0x01 , jtiString = 0x02 , jtiNumeric = 0x04 , jtiBool = 0x08 ,
  jtiAll = jtiKey | jtiString | jtiNumeric | jtiBool
}
 
enum  JsonTypeCategory {
  JSONTYPE_NULL , JSONTYPE_BOOL , JSONTYPE_NUMERIC , JSONTYPE_DATE ,
  JSONTYPE_TIMESTAMP , JSONTYPE_TIMESTAMPTZ , JSONTYPE_JSON , JSONTYPE_JSONB ,
  JSONTYPE_ARRAY , JSONTYPE_COMPOSITE , JSONTYPE_CAST , JSONTYPE_OTHER
}
 

Functions

JsonLexContextmakeJsonLexContext (JsonLexContext *lex, text *json, bool need_escapes)
 
bool pg_parse_json_or_errsave (JsonLexContext *lex, JsonSemAction *sem, struct Node *escontext)
 
void json_errsave_error (JsonParseErrorType error, JsonLexContext *lex, struct Node *escontext)
 
JsonTokenType json_get_first_token (text *json, bool throw_error)
 
uint32 parse_jsonb_index_flags (Jsonb *jb)
 
void iterate_jsonb_values (Jsonb *jb, uint32 flags, void *state, JsonIterateStringValuesAction action)
 
void iterate_json_values (text *json, uint32 flags, void *action_state, JsonIterateStringValuesAction action)
 
Jsonbtransform_jsonb_string_values (Jsonb *jsonb, void *action_state, JsonTransformStringValuesAction transform_action)
 
texttransform_json_string_values (text *json, void *action_state, JsonTransformStringValuesAction transform_action)
 
void json_categorize_type (Oid typoid, bool is_jsonb, JsonTypeCategory *tcategory, Oid *outfuncoid)
 
Datum datum_to_json (Datum val, JsonTypeCategory tcategory, Oid outfuncoid)
 
Datum datum_to_jsonb (Datum val, JsonTypeCategory tcategory, Oid outfuncoid)
 
Datum jsonb_from_text (text *js, bool unique_keys)
 
Datum json_populate_type (Datum json_val, Oid json_type, Oid typid, int32 typmod, void **cache, MemoryContext mcxt, bool *isnull, Node *escontext)
 

Macro Definition Documentation

◆ pg_parse_json_or_ereport

#define pg_parse_json_or_ereport (   lex,
  sem 
)     (void) pg_parse_json_or_errsave(lex, sem, NULL)

Definition at line 47 of file jsonfuncs.h.

Typedef Documentation

◆ JsonIterateStringValuesAction

typedef void(* JsonIterateStringValuesAction) (void *state, char *elem_value, int elem_len)

Definition at line 35 of file jsonfuncs.h.

◆ JsonToIndex

typedef enum JsonToIndex JsonToIndex

◆ JsonTransformStringValuesAction

typedef text*(* JsonTransformStringValuesAction) (void *state, char *elem_value, int elem_len)

Definition at line 38 of file jsonfuncs.h.

Enumeration Type Documentation

◆ JsonToIndex

Enumerator
jtiKey 
jtiString 
jtiNumeric 
jtiBool 
jtiAll 

Definition at line 25 of file jsonfuncs.h.

26 {
27  jtiKey = 0x01,
28  jtiString = 0x02,
29  jtiNumeric = 0x04,
30  jtiBool = 0x08,
32 } JsonToIndex;
JsonToIndex
Definition: jsonfuncs.h:26
@ jtiKey
Definition: jsonfuncs.h:27
@ jtiAll
Definition: jsonfuncs.h:31
@ jtiNumeric
Definition: jsonfuncs.h:29
@ jtiBool
Definition: jsonfuncs.h:30
@ jtiString
Definition: jsonfuncs.h:28

◆ JsonTypeCategory

Enumerator
JSONTYPE_NULL 
JSONTYPE_BOOL 
JSONTYPE_NUMERIC 
JSONTYPE_DATE 
JSONTYPE_TIMESTAMP 
JSONTYPE_TIMESTAMPTZ 
JSONTYPE_JSON 
JSONTYPE_JSONB 
JSONTYPE_ARRAY 
JSONTYPE_COMPOSITE 
JSONTYPE_CAST 
JSONTYPE_OTHER 

Definition at line 68 of file jsonfuncs.h.

69 {
70  JSONTYPE_NULL, /* null, so we didn't bother to identify */
71  JSONTYPE_BOOL, /* boolean (built-in types only) */
72  JSONTYPE_NUMERIC, /* numeric (ditto) */
73  JSONTYPE_DATE, /* we use special formatting for datetimes */
76  JSONTYPE_JSON, /* JSON (and JSONB, if not is_jsonb) */
77  JSONTYPE_JSONB, /* JSONB (if is_jsonb) */
78  JSONTYPE_ARRAY, /* array */
79  JSONTYPE_COMPOSITE, /* composite */
80  JSONTYPE_CAST, /* something with an explicit cast to JSON */
81  JSONTYPE_OTHER, /* all else */
JsonTypeCategory
Definition: jsonfuncs.h:69
@ JSONTYPE_JSON
Definition: jsonfuncs.h:76
@ JSONTYPE_NULL
Definition: jsonfuncs.h:70
@ JSONTYPE_TIMESTAMP
Definition: jsonfuncs.h:74
@ JSONTYPE_NUMERIC
Definition: jsonfuncs.h:72
@ JSONTYPE_DATE
Definition: jsonfuncs.h:73
@ JSONTYPE_BOOL
Definition: jsonfuncs.h:71
@ JSONTYPE_OTHER
Definition: jsonfuncs.h:81
@ JSONTYPE_CAST
Definition: jsonfuncs.h:80
@ JSONTYPE_COMPOSITE
Definition: jsonfuncs.h:79
@ JSONTYPE_ARRAY
Definition: jsonfuncs.h:78
@ JSONTYPE_TIMESTAMPTZ
Definition: jsonfuncs.h:75
@ JSONTYPE_JSONB
Definition: jsonfuncs.h:77

Function Documentation

◆ datum_to_json()

Datum datum_to_json ( Datum  val,
JsonTypeCategory  tcategory,
Oid  outfuncoid 
)

Definition at line 754 of file json.c.

755 {
756  StringInfo result = makeStringInfo();
757 
758  datum_to_json_internal(val, false, result, tcategory, outfuncoid,
759  false);
760 
761  return PointerGetDatum(cstring_to_text_with_len(result->data, result->len));
762 }
long val
Definition: informix.c:670
static void datum_to_json_internal(Datum val, bool is_null, StringInfo result, JsonTypeCategory tcategory, Oid outfuncoid, bool key_scalar)
Definition: json.c:177
static Datum PointerGetDatum(const void *X)
Definition: postgres.h:322
StringInfo makeStringInfo(void)
Definition: stringinfo.c:41
text * cstring_to_text_with_len(const char *s, int len)
Definition: varlena.c:196

References cstring_to_text_with_len(), StringInfoData::data, datum_to_json_internal(), StringInfoData::len, makeStringInfo(), PointerGetDatum(), and val.

Referenced by ExecEvalJsonConstructor(), and to_json().

◆ datum_to_jsonb()

Datum datum_to_jsonb ( Datum  val,
JsonTypeCategory  tcategory,
Oid  outfuncoid 
)

Definition at line 1112 of file jsonb.c.

1113 {
1114  JsonbInState result;
1115 
1116  memset(&result, 0, sizeof(JsonbInState));
1117 
1118  datum_to_jsonb_internal(val, false, &result, tcategory, outfuncoid,
1119  false);
1120 
1121  return JsonbPGetDatum(JsonbValueToJsonb(result.res));
1122 }
static void datum_to_jsonb_internal(Datum val, bool is_null, JsonbInState *result, JsonTypeCategory tcategory, Oid outfuncoid, bool key_scalar)
Definition: jsonb.c:638
static Datum JsonbPGetDatum(const Jsonb *p)
Definition: jsonb.h:386
Jsonb * JsonbValueToJsonb(JsonbValue *val)
Definition: jsonb_util.c:92
JsonbValue * res
Definition: jsonb.c:31

References datum_to_jsonb_internal(), JsonbPGetDatum(), JsonbValueToJsonb(), JsonbInState::res, and val.

Referenced by ExecEvalJsonConstructor(), and to_jsonb().

◆ iterate_json_values()

void iterate_json_values ( text json,
uint32  flags,
void *  action_state,
JsonIterateStringValuesAction  action 
)

Definition at line 5686 of file jsonfuncs.c.

5688 {
5689  JsonLexContext lex;
5690  JsonSemAction *sem = palloc0(sizeof(JsonSemAction));
5692 
5693  state->lex = makeJsonLexContext(&lex, json, true);
5694  state->action = action;
5695  state->action_state = action_state;
5696  state->flags = flags;
5697 
5698  sem->semstate = (void *) state;
5701 
5703  freeJsonLexContext(&lex);
5704 }
void freeJsonLexContext(JsonLexContext *lex)
Definition: jsonapi.c:482
static JsonParseErrorType iterate_values_object_field_start(void *state, char *fname, bool isnull)
Definition: jsonfuncs.c:5739
JsonLexContext * makeJsonLexContext(JsonLexContext *lex, text *json, bool need_escapes)
Definition: jsonfuncs.c:537
static JsonParseErrorType iterate_values_scalar(void *state, char *token, JsonTokenType tokentype)
Definition: jsonfuncs.c:5711
#define pg_parse_json_or_ereport(lex, sem)
Definition: jsonfuncs.h:47
void * palloc0(Size size)
Definition: mcxt.c:1346
json_ofield_action object_field_start
Definition: jsonapi.h:139
json_scalar_action scalar
Definition: jsonapi.h:143
void * semstate
Definition: jsonapi.h:134
Definition: regguts.h:323
JsonSemAction sem

References generate_unaccent_rules::action, freeJsonLexContext(), iterate_values_object_field_start(), iterate_values_scalar(), makeJsonLexContext(), JsonSemAction::object_field_start, palloc0(), pg_parse_json_or_ereport, JsonSemAction::scalar, sem, and JsonSemAction::semstate.

Referenced by json_to_tsvector_worker().

◆ iterate_jsonb_values()

void iterate_jsonb_values ( Jsonb jb,
uint32  flags,
void *  state,
JsonIterateStringValuesAction  action 
)

Definition at line 5618 of file jsonfuncs.c.

5620 {
5621  JsonbIterator *it;
5622  JsonbValue v;
5624 
5625  it = JsonbIteratorInit(&jb->root);
5626 
5627  /*
5628  * Just recursively iterating over jsonb and call callback on all
5629  * corresponding elements
5630  */
5631  while ((type = JsonbIteratorNext(&it, &v, false)) != WJB_DONE)
5632  {
5633  if (type == WJB_KEY)
5634  {
5635  if (flags & jtiKey)
5636  action(state, v.val.string.val, v.val.string.len);
5637 
5638  continue;
5639  }
5640  else if (!(type == WJB_VALUE || type == WJB_ELEM))
5641  {
5642  /* do not call callback for composite JsonbValue */
5643  continue;
5644  }
5645 
5646  /* JsonbValue is a value of object or element of array */
5647  switch (v.type)
5648  {
5649  case jbvString:
5650  if (flags & jtiString)
5651  action(state, v.val.string.val, v.val.string.len);
5652  break;
5653  case jbvNumeric:
5654  if (flags & jtiNumeric)
5655  {
5656  char *val;
5657 
5659  NumericGetDatum(v.val.numeric)));
5660 
5661  action(state, val, strlen(val));
5662  pfree(val);
5663  }
5664  break;
5665  case jbvBool:
5666  if (flags & jtiBool)
5667  {
5668  if (v.val.boolean)
5669  action(state, "true", 4);
5670  else
5671  action(state, "false", 5);
5672  }
5673  break;
5674  default:
5675  /* do not call callback for composite JsonbValue */
5676  break;
5677  }
5678  }
5679 }
Datum numeric_out(PG_FUNCTION_ARGS)
Definition: numeric.c:807
#define DirectFunctionCall1(func, arg1)
Definition: fmgr.h:642
@ jbvNumeric
Definition: jsonb.h:230
@ jbvBool
Definition: jsonb.h:231
@ jbvString
Definition: jsonb.h:229
JsonbIteratorToken
Definition: jsonb.h:21
@ WJB_KEY
Definition: jsonb.h:23
@ WJB_DONE
Definition: jsonb.h:22
@ WJB_VALUE
Definition: jsonb.h:24
@ WJB_ELEM
Definition: jsonb.h:25
JsonbIterator * JsonbIteratorInit(JsonbContainer *container)
Definition: jsonb_util.c:817
JsonbIteratorToken JsonbIteratorNext(JsonbIterator **it, JsonbValue *val, bool skipNested)
Definition: jsonb_util.c:853
void pfree(void *pointer)
Definition: mcxt.c:1520
static Datum NumericGetDatum(Numeric X)
Definition: numeric.h:73
static char * DatumGetCString(Datum X)
Definition: postgres.h:335
enum jbvType type
Definition: jsonb.h:255
char * val
Definition: jsonb.h:264
JsonbContainer root
Definition: jsonb.h:215
const char * type

References generate_unaccent_rules::action, DatumGetCString(), DirectFunctionCall1, jbvBool, jbvNumeric, jbvString, JsonbIteratorInit(), JsonbIteratorNext(), jtiBool, jtiKey, jtiNumeric, jtiString, numeric_out(), NumericGetDatum(), pfree(), Jsonb::root, type, JsonbValue::type, JsonbValue::val, val, WJB_DONE, WJB_ELEM, WJB_KEY, and WJB_VALUE.

Referenced by jsonb_to_tsvector_worker().

◆ json_categorize_type()

void json_categorize_type ( Oid  typoid,
bool  is_jsonb,
JsonTypeCategory tcategory,
Oid outfuncoid 
)

Definition at line 5953 of file jsonfuncs.c.

5955 {
5956  bool typisvarlena;
5957 
5958  /* Look through any domain */
5959  typoid = getBaseType(typoid);
5960 
5961  *outfuncoid = InvalidOid;
5962 
5963  switch (typoid)
5964  {
5965  case BOOLOID:
5966  *outfuncoid = F_BOOLOUT;
5967  *tcategory = JSONTYPE_BOOL;
5968  break;
5969 
5970  case INT2OID:
5971  case INT4OID:
5972  case INT8OID:
5973  case FLOAT4OID:
5974  case FLOAT8OID:
5975  case NUMERICOID:
5976  getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
5977  *tcategory = JSONTYPE_NUMERIC;
5978  break;
5979 
5980  case DATEOID:
5981  *outfuncoid = F_DATE_OUT;
5982  *tcategory = JSONTYPE_DATE;
5983  break;
5984 
5985  case TIMESTAMPOID:
5986  *outfuncoid = F_TIMESTAMP_OUT;
5987  *tcategory = JSONTYPE_TIMESTAMP;
5988  break;
5989 
5990  case TIMESTAMPTZOID:
5991  *outfuncoid = F_TIMESTAMPTZ_OUT;
5992  *tcategory = JSONTYPE_TIMESTAMPTZ;
5993  break;
5994 
5995  case JSONOID:
5996  getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
5997  *tcategory = JSONTYPE_JSON;
5998  break;
5999 
6000  case JSONBOID:
6001  getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
6002  *tcategory = is_jsonb ? JSONTYPE_JSONB : JSONTYPE_JSON;
6003  break;
6004 
6005  default:
6006  /* Check for arrays and composites */
6007  if (OidIsValid(get_element_type(typoid)) || typoid == ANYARRAYOID
6008  || typoid == ANYCOMPATIBLEARRAYOID || typoid == RECORDARRAYOID)
6009  {
6010  *outfuncoid = F_ARRAY_OUT;
6011  *tcategory = JSONTYPE_ARRAY;
6012  }
6013  else if (type_is_rowtype(typoid)) /* includes RECORDOID */
6014  {
6015  *outfuncoid = F_RECORD_OUT;
6016  *tcategory = JSONTYPE_COMPOSITE;
6017  }
6018  else
6019  {
6020  /*
6021  * It's probably the general case. But let's look for a cast
6022  * to json (note: not to jsonb even if is_jsonb is true), if
6023  * it's not built-in.
6024  */
6025  *tcategory = JSONTYPE_OTHER;
6026  if (typoid >= FirstNormalObjectId)
6027  {
6028  Oid castfunc;
6029  CoercionPathType ctype;
6030 
6031  ctype = find_coercion_pathway(JSONOID, typoid,
6033  &castfunc);
6034  if (ctype == COERCION_PATH_FUNC && OidIsValid(castfunc))
6035  {
6036  *outfuncoid = castfunc;
6037  *tcategory = JSONTYPE_CAST;
6038  }
6039  else
6040  {
6041  /* non builtin type with no cast */
6042  getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
6043  }
6044  }
6045  else
6046  {
6047  /* any other builtin type */
6048  getTypeOutputInfo(typoid, outfuncoid, &typisvarlena);
6049  }
6050  }
6051  break;
6052  }
6053 }
#define OidIsValid(objectId)
Definition: c.h:775
Oid get_element_type(Oid typid)
Definition: lsyscache.c:2759
bool type_is_rowtype(Oid typid)
Definition: lsyscache.c:2655
void getTypeOutputInfo(Oid type, Oid *typOutput, bool *typIsVarlena)
Definition: lsyscache.c:2907
Oid getBaseType(Oid typid)
Definition: lsyscache.c:2521
CoercionPathType find_coercion_pathway(Oid targetTypeId, Oid sourceTypeId, CoercionContext ccontext, Oid *funcid)
CoercionPathType
Definition: parse_coerce.h:25
@ COERCION_PATH_FUNC
Definition: parse_coerce.h:27
#define InvalidOid
Definition: postgres_ext.h:36
unsigned int Oid
Definition: postgres_ext.h:31
@ COERCION_EXPLICIT
Definition: primnodes.h:717
#define FirstNormalObjectId
Definition: transam.h:197

References COERCION_EXPLICIT, COERCION_PATH_FUNC, find_coercion_pathway(), FirstNormalObjectId, get_element_type(), getBaseType(), getTypeOutputInfo(), InvalidOid, JSONTYPE_ARRAY, JSONTYPE_BOOL, JSONTYPE_CAST, JSONTYPE_COMPOSITE, JSONTYPE_DATE, JSONTYPE_JSON, JSONTYPE_JSONB, JSONTYPE_NUMERIC, JSONTYPE_OTHER, JSONTYPE_TIMESTAMP, JSONTYPE_TIMESTAMPTZ, OidIsValid, and type_is_rowtype().

Referenced by add_json(), add_jsonb(), array_to_json_internal(), array_to_jsonb_internal(), composite_to_json(), composite_to_jsonb(), ExecInitExprRec(), json_agg_transfn_worker(), json_object_agg_transfn_worker(), jsonb_agg_transfn_worker(), jsonb_object_agg_transfn_worker(), to_json(), to_json_is_immutable(), to_jsonb(), and to_jsonb_is_immutable().

◆ json_errsave_error()

void json_errsave_error ( JsonParseErrorType  error,
JsonLexContext lex,
struct Node escontext 
)

Definition at line 638 of file jsonfuncs.c.

640 {
644  errsave(escontext,
645  (errcode(ERRCODE_UNTRANSLATABLE_CHARACTER),
646  errmsg("unsupported Unicode escape sequence"),
648  report_json_context(lex)));
649  else if (error == JSON_SEM_ACTION_FAILED)
650  {
651  /* semantic action function had better have reported something */
652  if (!SOFT_ERROR_OCCURRED(escontext))
653  elog(ERROR, "JSON semantic action function did not provide error information");
654  }
655  else
656  errsave(escontext,
657  (errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
658  errmsg("invalid input syntax for type %s", "json"),
660  report_json_context(lex)));
661 }
int errdetail_internal(const char *fmt,...)
Definition: elog.c:1230
int errcode(int sqlerrcode)
Definition: elog.c:857
int errmsg(const char *fmt,...)
Definition: elog.c:1070
#define errsave(context,...)
Definition: elog.h:260
#define ERROR
Definition: elog.h:39
#define elog(elevel,...)
Definition: elog.h:224
char * json_errdetail(JsonParseErrorType error, JsonLexContext *lex)
Definition: jsonapi.c:2096
@ JSON_SEM_ACTION_FAILED
Definition: jsonapi.h:60
@ JSON_UNICODE_CODE_POINT_ZERO
Definition: jsonapi.h:54
@ JSON_UNICODE_UNTRANSLATABLE
Definition: jsonapi.h:57
@ JSON_UNICODE_HIGH_ESCAPE
Definition: jsonapi.h:56
static int report_json_context(JsonLexContext *lex)
Definition: jsonfuncs.c:674
#define SOFT_ERROR_OCCURRED(escontext)
Definition: miscnodes.h:52
static void error(void)
Definition: sql-dyntest.c:147

References elog, errcode(), errdetail_internal(), errmsg(), ERROR, error(), errsave, json_errdetail(), JSON_SEM_ACTION_FAILED, JSON_UNICODE_CODE_POINT_ZERO, JSON_UNICODE_HIGH_ESCAPE, JSON_UNICODE_UNTRANSLATABLE, report_json_context(), and SOFT_ERROR_OCCURRED.

Referenced by get_array_start(), json_get_first_token(), json_typeof(), json_validate(), and pg_parse_json_or_errsave().

◆ json_get_first_token()

JsonTokenType json_get_first_token ( text json,
bool  throw_error 
)

Definition at line 5926 of file jsonfuncs.c.

5927 {
5928  JsonLexContext lex;
5929  JsonParseErrorType result;
5930 
5931  makeJsonLexContext(&lex, json, false);
5932 
5933  /* Lex exactly one token from the input and check its type. */
5934  result = json_lex(&lex);
5935 
5936  if (result == JSON_SUCCESS)
5937  return lex.token_type;
5938 
5939  if (throw_error)
5940  json_errsave_error(result, &lex, NULL);
5941 
5942  return JSON_TOKEN_INVALID; /* invalid json */
5943 }
JsonParseErrorType json_lex(JsonLexContext *lex)
Definition: jsonapi.c:1308
JsonParseErrorType
Definition: jsonapi.h:37
@ JSON_SUCCESS
Definition: jsonapi.h:38
@ JSON_TOKEN_INVALID
Definition: jsonapi.h:21
void json_errsave_error(JsonParseErrorType error, JsonLexContext *lex, Node *escontext)
Definition: jsonfuncs.c:638
JsonTokenType token_type
Definition: jsonapi.h:98

References json_errsave_error(), json_lex(), JSON_SUCCESS, JSON_TOKEN_INVALID, makeJsonLexContext(), and JsonLexContext::token_type.

Referenced by ExecEvalJsonIsPredicate().

◆ json_populate_type()

Datum json_populate_type ( Datum  json_val,
Oid  json_type,
Oid  typid,
int32  typmod,
void **  cache,
MemoryContext  mcxt,
bool isnull,
Node escontext 
)

Definition at line 3335 of file jsonfuncs.c.

3340 {
3341  JsValue jsv = {0};
3342  JsonbValue jbv;
3343 
3344  jsv.is_json = json_type == JSONOID;
3345 
3346  if (*isnull)
3347  {
3348  if (jsv.is_json)
3349  jsv.val.json.str = NULL;
3350  else
3351  jsv.val.jsonb = NULL;
3352  }
3353  else if (jsv.is_json)
3354  {
3355  text *json = DatumGetTextPP(json_val);
3356 
3357  jsv.val.json.str = VARDATA_ANY(json);
3358  jsv.val.json.len = VARSIZE_ANY_EXHDR(json);
3359  jsv.val.json.type = JSON_TOKEN_INVALID; /* not used in
3360  * populate_composite() */
3361  }
3362  else
3363  {
3364  Jsonb *jsonb = DatumGetJsonbP(json_val);
3365 
3366  jsv.val.jsonb = &jbv;
3367 
3368  /* fill binary jsonb value pointing to jb */
3369  jbv.type = jbvBinary;
3370  jbv.val.binary.data = &jsonb->root;
3371  jbv.val.binary.len = VARSIZE(jsonb) - VARHDRSZ;
3372  }
3373 
3374  if (*cache == NULL)
3375  *cache = MemoryContextAllocZero(mcxt, sizeof(ColumnIOData));
3376 
3377  return populate_record_field(*cache, typid, typmod, NULL, mcxt,
3378  PointerGetDatum(NULL), &jsv, isnull,
3379  escontext);
3380 }
#define VARHDRSZ
Definition: c.h:692
#define DatumGetTextPP(X)
Definition: fmgr.h:292
@ jbvBinary
Definition: jsonb.h:236
static Jsonb * DatumGetJsonbP(Datum d)
Definition: jsonb.h:374
static Datum populate_record_field(ColumnIOData *col, Oid typid, int32 typmod, const char *colname, MemoryContext mcxt, Datum defaultval, JsValue *jsv, bool *isnull, Node *escontext)
Definition: jsonfuncs.c:3384
void * MemoryContextAllocZero(MemoryContext context, Size size)
Definition: mcxt.c:1214
union JsValue::@27 val
JsonbValue * jsonb
Definition: jsonfuncs.c:303
struct JsValue::@27::@28 json
bool is_json
Definition: jsonfuncs.c:293
Definition: jsonb.h:213
Definition: c.h:687
#define VARDATA_ANY(PTR)
Definition: varatt.h:324
#define VARSIZE(PTR)
Definition: varatt.h:279
#define VARSIZE_ANY_EXHDR(PTR)
Definition: varatt.h:317

References DatumGetJsonbP(), DatumGetTextPP, JsValue::is_json, jbvBinary, JsValue::json, JSON_TOKEN_INVALID, JsValue::jsonb, MemoryContextAllocZero(), PointerGetDatum(), populate_record_field(), Jsonb::root, JsonbValue::type, JsValue::val, JsonbValue::val, VARDATA_ANY, VARHDRSZ, VARSIZE, and VARSIZE_ANY_EXHDR.

Referenced by ExecEvalJsonCoercion().

◆ jsonb_from_text()

Datum jsonb_from_text ( text js,
bool  unique_keys 
)

Definition at line 147 of file jsonb.c.

148 {
149  return jsonb_from_cstring(VARDATA_ANY(js),
150  VARSIZE_ANY_EXHDR(js),
151  unique_keys,
152  NULL);
153 }
static Datum jsonb_from_cstring(char *json, int len, bool unique_keys, Node *escontext)
Definition: jsonb.c:248

References jsonb_from_cstring(), VARDATA_ANY, and VARSIZE_ANY_EXHDR.

Referenced by ExecEvalJsonConstructor().

◆ makeJsonLexContext()

JsonLexContext* makeJsonLexContext ( JsonLexContext lex,
text json,
bool  need_escapes 
)

Definition at line 537 of file jsonfuncs.c.

538 {
539  /*
540  * Most callers pass a detoasted datum, but it's not clear that they all
541  * do. pg_detoast_datum_packed() is cheap insurance.
542  */
543  json = pg_detoast_datum_packed(json);
544 
545  return makeJsonLexContextCstringLen(lex,
546  VARDATA_ANY(json),
547  VARSIZE_ANY_EXHDR(json),
549  need_escapes);
550 }
struct varlena * pg_detoast_datum_packed(struct varlena *datum)
Definition: fmgr.c:1864
JsonLexContext * makeJsonLexContextCstringLen(JsonLexContext *lex, char *json, int len, int encoding, bool need_escapes)
Definition: jsonapi.c:326
int GetDatabaseEncoding(void)
Definition: mbutils.c:1261

References GetDatabaseEncoding(), makeJsonLexContextCstringLen(), pg_detoast_datum_packed(), VARDATA_ANY, and VARSIZE_ANY_EXHDR.

Referenced by datum_to_jsonb_internal(), each_worker(), elements_worker(), get_worker(), iterate_json_values(), json_array_length(), json_get_first_token(), json_in(), json_object_keys(), json_strip_nulls(), json_typeof(), json_validate(), populate_recordset_worker(), and transform_json_string_values().

◆ parse_jsonb_index_flags()

uint32 parse_jsonb_index_flags ( Jsonb jb)

Definition at line 5550 of file jsonfuncs.c.

5551 {
5552  JsonbIterator *it;
5553  JsonbValue v;
5555  uint32 flags = 0;
5556 
5557  it = JsonbIteratorInit(&jb->root);
5558 
5559  type = JsonbIteratorNext(&it, &v, false);
5560 
5561  /*
5562  * We iterate over array (scalar internally is represented as array, so,
5563  * we will accept it too) to check all its elements. Flag names are
5564  * chosen the same as jsonb_typeof uses.
5565  */
5566  if (type != WJB_BEGIN_ARRAY)
5567  ereport(ERROR, (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
5568  errmsg("wrong flag type, only arrays and scalars are allowed")));
5569 
5570  while ((type = JsonbIteratorNext(&it, &v, false)) == WJB_ELEM)
5571  {
5572  if (v.type != jbvString)
5573  ereport(ERROR,
5574  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
5575  errmsg("flag array element is not a string"),
5576  errhint("Possible values are: \"string\", \"numeric\", \"boolean\", \"key\", and \"all\".")));
5577 
5578  if (v.val.string.len == 3 &&
5579  pg_strncasecmp(v.val.string.val, "all", 3) == 0)
5580  flags |= jtiAll;
5581  else if (v.val.string.len == 3 &&
5582  pg_strncasecmp(v.val.string.val, "key", 3) == 0)
5583  flags |= jtiKey;
5584  else if (v.val.string.len == 6 &&
5585  pg_strncasecmp(v.val.string.val, "string", 6) == 0)
5586  flags |= jtiString;
5587  else if (v.val.string.len == 7 &&
5588  pg_strncasecmp(v.val.string.val, "numeric", 7) == 0)
5589  flags |= jtiNumeric;
5590  else if (v.val.string.len == 7 &&
5591  pg_strncasecmp(v.val.string.val, "boolean", 7) == 0)
5592  flags |= jtiBool;
5593  else
5594  ereport(ERROR,
5595  (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
5596  errmsg("wrong flag in flag array: \"%s\"",
5597  pnstrdup(v.val.string.val, v.val.string.len)),
5598  errhint("Possible values are: \"string\", \"numeric\", \"boolean\", \"key\", and \"all\".")));
5599  }
5600 
5601  /* expect end of array now */
5602  if (type != WJB_END_ARRAY)
5603  elog(ERROR, "unexpected end of flag array");
5604 
5605  /* get final WJB_DONE and free iterator */
5606  type = JsonbIteratorNext(&it, &v, false);
5607  if (type != WJB_DONE)
5608  elog(ERROR, "unexpected end of flag array");
5609 
5610  return flags;
5611 }
unsigned int uint32
Definition: c.h:506
int errhint(const char *fmt,...)
Definition: elog.c:1317
#define ereport(elevel,...)
Definition: elog.h:149
@ WJB_END_ARRAY
Definition: jsonb.h:27
@ WJB_BEGIN_ARRAY
Definition: jsonb.h:26
char * pnstrdup(const char *in, Size len)
Definition: mcxt.c:1706
int pg_strncasecmp(const char *s1, const char *s2, size_t n)
Definition: pgstrcasecmp.c:69

References elog, ereport, errcode(), errhint(), errmsg(), ERROR, jbvString, JsonbIteratorInit(), JsonbIteratorNext(), jtiAll, jtiBool, jtiKey, jtiNumeric, jtiString, pg_strncasecmp(), pnstrdup(), Jsonb::root, type, JsonbValue::type, JsonbValue::val, WJB_BEGIN_ARRAY, WJB_DONE, WJB_ELEM, and WJB_END_ARRAY.

Referenced by json_to_tsvector(), json_to_tsvector_byid(), jsonb_to_tsvector(), and jsonb_to_tsvector_byid().

◆ pg_parse_json_or_errsave()

bool pg_parse_json_or_errsave ( JsonLexContext lex,
JsonSemAction sem,
struct Node escontext 
)

Definition at line 516 of file jsonfuncs.c.

518 {
519  JsonParseErrorType result;
520 
521  result = pg_parse_json(lex, sem);
522  if (result != JSON_SUCCESS)
523  {
524  json_errsave_error(result, lex, escontext);
525  return false;
526  }
527  return true;
528 }
JsonParseErrorType pg_parse_json(JsonLexContext *lex, JsonSemAction *sem)
Definition: jsonapi.c:521

References json_errsave_error(), JSON_SUCCESS, pg_parse_json(), and sem.

Referenced by get_json_object_as_hash(), json_in(), jsonb_from_cstring(), and populate_array_json().

◆ transform_json_string_values()

text* transform_json_string_values ( text json,
void *  action_state,
JsonTransformStringValuesAction  transform_action 
)

Definition at line 5807 of file jsonfuncs.c.

5809 {
5810  JsonLexContext lex;
5811  JsonSemAction *sem = palloc0(sizeof(JsonSemAction));
5813 
5814  state->lex = makeJsonLexContext(&lex, json, true);
5815  state->strval = makeStringInfo();
5816  state->action = transform_action;
5817  state->action_state = action_state;
5818 
5819  sem->semstate = (void *) state;
5827 
5829  freeJsonLexContext(&lex);
5830 
5831  return cstring_to_text_with_len(state->strval->data, state->strval->len);
5832 }
static JsonParseErrorType transform_string_values_array_start(void *state)
Definition: jsonfuncs.c:5860
static JsonParseErrorType transform_string_values_object_field_start(void *state, char *fname, bool isnull)
Definition: jsonfuncs.c:5880
static JsonParseErrorType transform_string_values_array_end(void *state)
Definition: jsonfuncs.c:5870
static JsonParseErrorType transform_string_values_object_end(void *state)
Definition: jsonfuncs.c:5850
static JsonParseErrorType transform_string_values_object_start(void *state)
Definition: jsonfuncs.c:5840
static JsonParseErrorType transform_string_values_array_element_start(void *state, bool isnull)
Definition: jsonfuncs.c:5898
static JsonParseErrorType transform_string_values_scalar(void *state, char *token, JsonTokenType tokentype)
Definition: jsonfuncs.c:5909
json_struct_action array_end
Definition: jsonapi.h:138
json_struct_action object_start
Definition: jsonapi.h:135
json_aelem_action array_element_start
Definition: jsonapi.h:141
json_struct_action array_start
Definition: jsonapi.h:137
json_struct_action object_end
Definition: jsonapi.h:136

References JsonSemAction::array_element_start, JsonSemAction::array_end, JsonSemAction::array_start, cstring_to_text_with_len(), freeJsonLexContext(), makeJsonLexContext(), makeStringInfo(), JsonSemAction::object_end, JsonSemAction::object_field_start, JsonSemAction::object_start, palloc0(), pg_parse_json_or_ereport, JsonSemAction::scalar, sem, JsonSemAction::semstate, transform_string_values_array_element_start(), transform_string_values_array_end(), transform_string_values_array_start(), transform_string_values_object_end(), transform_string_values_object_field_start(), transform_string_values_object_start(), and transform_string_values_scalar().

Referenced by ts_headline_json_byid_opt().

◆ transform_jsonb_string_values()

Jsonb* transform_jsonb_string_values ( Jsonb jsonb,
void *  action_state,
JsonTransformStringValuesAction  transform_action 
)

Definition at line 5760 of file jsonfuncs.c.

5762 {
5763  JsonbIterator *it;
5764  JsonbValue v,
5765  *res = NULL;
5767  JsonbParseState *st = NULL;
5768  text *out;
5769  bool is_scalar = false;
5770 
5771  it = JsonbIteratorInit(&jsonb->root);
5772  is_scalar = it->isScalar;
5773 
5774  while ((type = JsonbIteratorNext(&it, &v, false)) != WJB_DONE)
5775  {
5776  if ((type == WJB_VALUE || type == WJB_ELEM) && v.type == jbvString)
5777  {
5778  out = transform_action(action_state, v.val.string.val, v.val.string.len);
5779  /* out is probably not toasted, but let's be sure */
5780  out = pg_detoast_datum_packed(out);
5781  v.val.string.val = VARDATA_ANY(out);
5782  v.val.string.len = VARSIZE_ANY_EXHDR(out);
5783  res = pushJsonbValue(&st, type, type < WJB_BEGIN_ARRAY ? &v : NULL);
5784  }
5785  else
5786  {
5787  res = pushJsonbValue(&st, type, (type == WJB_KEY ||
5788  type == WJB_VALUE ||
5789  type == WJB_ELEM) ? &v : NULL);
5790  }
5791  }
5792 
5793  if (res->type == jbvArray)
5794  res->val.array.rawScalar = is_scalar;
5795 
5796  return JsonbValueToJsonb(res);
5797 }
@ jbvArray
Definition: jsonb.h:233
JsonbValue * pushJsonbValue(JsonbParseState **pstate, JsonbIteratorToken seq, JsonbValue *jbval)
Definition: jsonb_util.c:566
bool isScalar
Definition: jsonb.h:347

References JsonbIterator::isScalar, jbvArray, jbvString, JsonbIteratorInit(), JsonbIteratorNext(), JsonbValueToJsonb(), pg_detoast_datum_packed(), pushJsonbValue(), res, Jsonb::root, type, JsonbValue::type, JsonbValue::val, VARDATA_ANY, VARSIZE_ANY_EXHDR, WJB_BEGIN_ARRAY, WJB_DONE, WJB_ELEM, WJB_KEY, and WJB_VALUE.

Referenced by ts_headline_jsonb_byid_opt().