fmgr.c File Reference

#include "postgres.h"
#include "access/detoast.h"
#include "catalog/pg_language.h"
#include "catalog/pg_proc.h"
#include "catalog/pg_type.h"
#include "executor/functions.h"
#include "lib/stringinfo.h"
#include "miscadmin.h"
#include "nodes/makefuncs.h"
#include "nodes/nodeFuncs.h"
#include "pgstat.h"
#include "utils/acl.h"
#include "utils/builtins.h"
#include "utils/fmgrtab.h"
#include "utils/guc.h"
#include "utils/lsyscache.h"
#include "utils/syscache.h"

Include dependency graph for fmgr.c:

Go to the source code of this file.

Data Structures
struct	CFuncHashTabEntry
struct	fmgr_security_definer_cache

Functions
static void	fmgr_info_cxt_security (Oid functionId, FmgrInfo *finfo, MemoryContext mcxt, bool ignore_security)
static void	fmgr_info_C_lang (Oid functionId, FmgrInfo *finfo, HeapTuple procedureTuple)
static void	fmgr_info_other_lang (Oid functionId, FmgrInfo *finfo, HeapTuple procedureTuple)
static CFuncHashTabEntry *	lookup_C_func (HeapTuple procedureTuple)
static void	record_C_func (HeapTuple procedureTuple, PGFunction user_fn, const Pg_finfo_record *inforec)
Datum	fmgr_security_definer (PG_FUNCTION_ARGS)
static const FmgrBuiltin *	fmgr_isbuiltin (Oid id)
static const FmgrBuiltin *	fmgr_lookupByName (const char *name)
void	fmgr_info (Oid functionId, FmgrInfo *finfo)
void	fmgr_info_cxt (Oid functionId, FmgrInfo *finfo, MemoryContext mcxt)
void	fmgr_symbol (Oid functionId, char **mod, char **fn)
const Pg_finfo_record *	fetch_finfo_record (void *filehandle, const char *funcname)
void	clear_external_function_hash (void *filehandle)
void	fmgr_info_copy (FmgrInfo *dstinfo, FmgrInfo *srcinfo, MemoryContext destcxt)
Oid	fmgr_internal_function (const char *proname)
Datum	DirectFunctionCall1Coll (PGFunction func, Oid collation, Datum arg1)
Datum	DirectFunctionCall2Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2)
Datum	DirectFunctionCall3Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2, Datum arg3)
Datum	DirectFunctionCall4Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4)
Datum	DirectFunctionCall5Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5)
Datum	DirectFunctionCall6Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6)
Datum	DirectFunctionCall7Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7)
Datum	DirectFunctionCall8Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7, Datum arg8)
Datum	DirectFunctionCall9Coll (PGFunction func, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7, Datum arg8, Datum arg9)
Datum	CallerFInfoFunctionCall1 (PGFunction func, FmgrInfo *flinfo, Oid collation, Datum arg1)
Datum	CallerFInfoFunctionCall2 (PGFunction func, FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2)
Datum	FunctionCall0Coll (FmgrInfo *flinfo, Oid collation)
Datum	FunctionCall1Coll (FmgrInfo *flinfo, Oid collation, Datum arg1)
Datum	FunctionCall2Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2)
Datum	FunctionCall3Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2, Datum arg3)
Datum	FunctionCall4Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4)
Datum	FunctionCall5Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5)
Datum	FunctionCall6Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6)
Datum	FunctionCall7Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7)
Datum	FunctionCall8Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7, Datum arg8)
Datum	FunctionCall9Coll (FmgrInfo *flinfo, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7, Datum arg8, Datum arg9)
Datum	OidFunctionCall0Coll (Oid functionId, Oid collation)
Datum	OidFunctionCall1Coll (Oid functionId, Oid collation, Datum arg1)
Datum	OidFunctionCall2Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2)
Datum	OidFunctionCall3Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2, Datum arg3)
Datum	OidFunctionCall4Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4)
Datum	OidFunctionCall5Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5)
Datum	OidFunctionCall6Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6)
Datum	OidFunctionCall7Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7)
Datum	OidFunctionCall8Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7, Datum arg8)
Datum	OidFunctionCall9Coll (Oid functionId, Oid collation, Datum arg1, Datum arg2, Datum arg3, Datum arg4, Datum arg5, Datum arg6, Datum arg7, Datum arg8, Datum arg9)
Datum	InputFunctionCall (FmgrInfo *flinfo, char *str, Oid typioparam, int32 typmod)
char *	OutputFunctionCall (FmgrInfo *flinfo, Datum val)
Datum	ReceiveFunctionCall (FmgrInfo *flinfo, StringInfo buf, Oid typioparam, int32 typmod)
bytea *	SendFunctionCall (FmgrInfo *flinfo, Datum val)
Datum	OidInputFunctionCall (Oid functionId, char *str, Oid typioparam, int32 typmod)
char *	OidOutputFunctionCall (Oid functionId, Datum val)
Datum	OidReceiveFunctionCall (Oid functionId, StringInfo buf, Oid typioparam, int32 typmod)
bytea *	OidSendFunctionCall (Oid functionId, Datum val)
Datum	Int64GetDatum (int64 X)
Datum	Float8GetDatum (float8 X)
struct varlena *	pg_detoast_datum (struct varlena *datum)
struct varlena *	pg_detoast_datum_copy (struct varlena *datum)
struct varlena *	pg_detoast_datum_slice (struct varlena *datum, int32 first, int32 count)
struct varlena *	pg_detoast_datum_packed (struct varlena *datum)
Oid	get_fn_expr_rettype (FmgrInfo *flinfo)
Oid	get_fn_expr_argtype (FmgrInfo *flinfo, int argnum)
Oid	get_call_expr_argtype (Node *expr, int argnum)
bool	get_fn_expr_arg_stable (FmgrInfo *flinfo, int argnum)
bool	get_call_expr_arg_stable (Node *expr, int argnum)
bool	get_fn_expr_variadic (FmgrInfo *flinfo)
void	set_fn_opclass_options (FmgrInfo *flinfo, bytea *options)
bool	has_fn_opclass_options (FmgrInfo *flinfo)
bytea *	get_fn_opclass_options (FmgrInfo *flinfo)
bool	CheckFunctionValidatorAccess (Oid validatorOid, Oid functionOid)

Variables
PGDLLIMPORT needs_fmgr_hook_type	needs_fmgr_hook = NULL
PGDLLIMPORT fmgr_hook_type	fmgr_hook = NULL
static HTAB *	CFuncHash = NULL

Function Documentation

CallerFInfoFunctionCall1()

Datum CallerFInfoFunctionCall1	(	PGFunction	func,
		FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1
	)

Definition at line 1068 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

{
    LOCAL_FCINFO(fcinfo, 1);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 1, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

CallerFInfoFunctionCall2()

Datum CallerFInfoFunctionCall2	(	PGFunction	func,
		FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2
	)

Definition at line 1088 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by gbt_enumge(), gbt_enumgt(), gbt_enumkey_cmp(), gbt_enumle(), gbt_enumlt(), gin_btree_compare_prefix(), and gin_enum_cmp().

{
    LOCAL_FCINFO(fcinfo, 2);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 2, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

CheckFunctionValidatorAccess()

bool CheckFunctionValidatorAccess	(	Oid	validatorOid,
		Oid	functionOid
	)

Definition at line 2039 of file fmgr.c.

References ACL_EXECUTE, ACL_USAGE, aclcheck_error(), ACLCHECK_OK, elog, ereport, errcode(), errmsg(), ERROR, GETSTRUCT, GetUserId(), HeapTupleIsValid, LANGOID, NameStr, OBJECT_FUNCTION, OBJECT_LANGUAGE, ObjectIdGetDatum, pg_language_aclcheck(), pg_proc_aclcheck(), PROCOID, ReleaseSysCache(), and SearchSysCache1().

Referenced by fmgr_c_validator(), fmgr_internal_validator(), fmgr_sql_validator(), plperl_validator(), plpgsql_validator(), and plpython_validator().

{
    HeapTuple   procTup;
    HeapTuple   langTup;
    Form_pg_proc procStruct;
    Form_pg_language langStruct;
    AclResult   aclresult;

    /*
     * Get the function's pg_proc entry.  Throw a user-facing error for bad
     * OID, because validators can be called with user-specified OIDs.
     */
    procTup = SearchSysCache1(PROCOID, ObjectIdGetDatum(functionOid));
    if (!HeapTupleIsValid(procTup))
        ereport(ERROR,
                (errcode(ERRCODE_UNDEFINED_FUNCTION),
                 errmsg("function with OID %u does not exist", functionOid)));
    procStruct = (Form_pg_proc) GETSTRUCT(procTup);

    /*
     * Fetch pg_language entry to know if this is the correct validation
     * function for that pg_proc entry.
     */
    langTup = SearchSysCache1(LANGOID, ObjectIdGetDatum(procStruct->prolang));
    if (!HeapTupleIsValid(langTup))
        elog(ERROR, "cache lookup failed for language %u", procStruct->prolang);
    langStruct = (Form_pg_language) GETSTRUCT(langTup);

    if (langStruct->lanvalidator != validatorOid)
        ereport(ERROR,
                (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE),
                 errmsg("language validation function %u called for language %u instead of %u",
                        validatorOid, procStruct->prolang,
                        langStruct->lanvalidator)));

    /* first validate that we have permissions to use the language */
    aclresult = pg_language_aclcheck(procStruct->prolang, GetUserId(),
                                     ACL_USAGE);
    if (aclresult != ACLCHECK_OK)
        aclcheck_error(aclresult, OBJECT_LANGUAGE,
                       NameStr(langStruct->lanname));

    /*
     * Check whether we are allowed to execute the function itself. If we can
     * execute it, there should be no possible side-effect of
     * compiling/validation that execution can't have.
     */
    aclresult = pg_proc_aclcheck(functionOid, GetUserId(), ACL_EXECUTE);
    if (aclresult != ACLCHECK_OK)
        aclcheck_error(aclresult, OBJECT_FUNCTION, NameStr(procStruct->proname));

    ReleaseSysCache(procTup);
    ReleaseSysCache(langTup);

    return true;
}

clear_external_function_hash()

void clear_external_function_hash

(

void *

filehandle

)

Definition at line 596 of file fmgr.c.

References hash_destroy().

Referenced by internal_unload_library().

{
    if (CFuncHash)
        hash_destroy(CFuncHash);
    CFuncHash = NULL;
}

DirectFunctionCall1Coll()

Datum DirectFunctionCall1Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1
	)

Definition at line 795 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by Generic_Text_IC_like(), libpqrcv_create_slot(), and texthashfast().

{
    LOCAL_FCINFO(fcinfo, 1);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 1, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall2Coll()

Datum DirectFunctionCall2Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2
	)

Definition at line 815 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by gbt_textcmp(), gbt_texteq(), gbt_textge(), gbt_textgt(), gbt_textle(), gbt_textlt(), spg_text_leaf_consistent(), text_isequal(), and texteqfast().

{
    LOCAL_FCINFO(fcinfo, 2);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 2, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall3Coll()

Datum DirectFunctionCall3Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3
	)

Definition at line 837 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by execute_extension_script().

{
    LOCAL_FCINFO(fcinfo, 3);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 3, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall4Coll()

Datum DirectFunctionCall4Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4
	)

Definition at line 862 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by execute_extension_script().

{
    LOCAL_FCINFO(fcinfo, 4);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 4, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall5Coll()

Datum DirectFunctionCall5Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5
	)

Definition at line 889 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

{
    LOCAL_FCINFO(fcinfo, 5);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 5, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall6Coll()

Datum DirectFunctionCall6Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6
	)

Definition at line 918 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

{
    LOCAL_FCINFO(fcinfo, 6);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 6, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall7Coll()

Datum DirectFunctionCall7Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7
	)

Definition at line 950 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

{
    LOCAL_FCINFO(fcinfo, 7);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 7, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;
    fcinfo->args[6].value = arg7;
    fcinfo->args[6].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall8Coll()

Datum DirectFunctionCall8Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7,
		Datum	arg8
	)

Definition at line 984 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

{
    LOCAL_FCINFO(fcinfo, 8);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 8, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;
    fcinfo->args[6].value = arg7;
    fcinfo->args[6].isnull = false;
    fcinfo->args[7].value = arg8;
    fcinfo->args[7].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

DirectFunctionCall9Coll()

Datum DirectFunctionCall9Coll	(	PGFunction	func,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7,
		Datum	arg8,
		Datum	arg9
	)

Definition at line 1020 of file fmgr.c.

References elog, ERROR, InitFunctionCallInfoData, and LOCAL_FCINFO.

{
    LOCAL_FCINFO(fcinfo, 9);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, NULL, 9, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;
    fcinfo->args[6].value = arg7;
    fcinfo->args[6].isnull = false;
    fcinfo->args[7].value = arg8;
    fcinfo->args[7].isnull = false;
    fcinfo->args[8].value = arg9;
    fcinfo->args[8].isnull = false;

    result = (*func) (fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %p returned NULL", (void *) func);

    return result;
}

fetch_finfo_record()

const Pg_finfo_record* fetch_finfo_record	(	void *	filehandle,
		const char *	funcname
	)

Definition at line 472 of file fmgr.c.

References Pg_finfo_record::api_version, elog, ereport, errcode(), errhint(), errmsg(), ERROR, lookup_external_function(), pfree(), and psprintf().

Referenced by fmgr_c_validator(), and fmgr_info_C_lang().

{
    char       *infofuncname;
    PGFInfoFunction infofunc;
    const Pg_finfo_record *inforec;

    infofuncname = psprintf("pg_finfo_%s", funcname);

    /* Try to look up the info function */
    infofunc = (PGFInfoFunction) lookup_external_function(filehandle,
                                                          infofuncname);
    if (infofunc == NULL)
    {
        ereport(ERROR,
                (errcode(ERRCODE_UNDEFINED_FUNCTION),
                 errmsg("could not find function information for function \"%s\"",
                        funcname),
                 errhint("SQL-callable functions need an accompanying PG_FUNCTION_INFO_V1(funcname).")));
        return NULL;            /* silence compiler */
    }

    /* Found, so call it */
    inforec = (*infofunc) ();

    /* Validate result as best we can */
    if (inforec == NULL)
        elog(ERROR, "null result from info function \"%s\"", infofuncname);
    switch (inforec->api_version)
    {
        case 1:
            /* OK, no additional fields to validate */
            break;
        default:
            ereport(ERROR,
                    (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
                     errmsg("unrecognized API version %d reported by info function \"%s\"",
                            inforec->api_version, infofuncname)));
            break;
    }

    pfree(infofuncname);
    return inforec;
}

Float8GetDatum()

Datum Float8GetDatum

(

float8

X

)

Definition at line 1710 of file fmgr.c.

References palloc(), and PointerGetDatum.

Referenced by assign_random_seed(), compute_range_stats(), executeItemOptUnwrapTarget(), float8_lerp(), gbt_num_fetch(), hash_metapage_info(), index_store_float8_orderby_distances(), int8_to_char(), interval_avg(), leftmostvalue_float8(), normal_rand(), pg_stats_ext_mcvlist_items(), pgstathashindex(), pgstattuple_approx_internal(), spg_kd_picksplit(), SPI_sql_row_to_xmlelement(), and SV_to_JsonbValue().

{
    float8     *retval = (float8 *) palloc(sizeof(float8));

    *retval = X;
    return PointerGetDatum(retval);
}

fmgr_info()

void fmgr_info	(	Oid	functionId,
		FmgrInfo *	finfo
	)

Definition at line 126 of file fmgr.c.

References CurrentMemoryContext, and fmgr_info_cxt_security().

Referenced by _bt_find_extreme_element(), _bt_sort_array_elements(), _sv_to_datum_finfo(), BeginCopyFrom(), brin_page_items(), build_pertrans_for_aggref(), call_pltcl_start_proc(), compute_distinct_stats(), CopyTo(), create_foreign_modify(), eqjoinsel_inner(), eqjoinsel_semi(), EventTriggerInvoke(), ExecBuildGroupingEqual(), ExecCallTriggerFunc(), ExecHashTableCreate(), ExecInitAgg(), ExecInitExprRec(), ExecInitFunc(), ExecInitSubPlan(), ExecInitTableFuncScan(), ExecInitWindowAgg(), execTuplesHashPrepare(), ExecuteCallStmt(), fetch_fp_info(), generic_restriction_selectivity(), get_stats_slot_range(), gincost_pattern(), inet_mcv_join_sel(), initialize_peragg(), match_pattern_prefix(), mcv_get_match_bitmap(), networkjoinsel_semi(), networksel(), OidFunctionCall0Coll(), OidFunctionCall1Coll(), OidFunctionCall2Coll(), OidFunctionCall3Coll(), OidFunctionCall4Coll(), OidFunctionCall5Coll(), OidFunctionCall6Coll(), OidFunctionCall7Coll(), OidFunctionCall8Coll(), OidFunctionCall9Coll(), OidInputFunctionCall(), OidOutputFunctionCall(), OidReceiveFunctionCall(), OidSendFunctionCall(), patternsel_common(), pg_stats_ext_mcvlist_items(), plperl_ref_from_pg_array(), prefix_selectivity(), prepare_query_params(), printtup_prepare_info(), scalararraysel(), scalarineqsel(), ScanKeyEntryInitialize(), ScanKeyInit(), text_format(), TupleDescGetAttInMetadata(), and var_eq_const().

{
    fmgr_info_cxt_security(functionId, finfo, CurrentMemoryContext, false);
}

fmgr_info_C_lang()

static void fmgr_info_C_lang ( Oid  functionId, FmgrInfo *  finfo, HeapTuple  procedureTuple  )

static

Definition at line 361 of file fmgr.c.

References Pg_finfo_record::api_version, elog, ERROR, fetch_finfo_record(), FmgrInfo::fn_addr, CFuncHashTabEntry::inforec, load_external_function(), lookup_C_func(), pfree(), PROCOID, record_C_func(), SysCacheGetAttr(), TextDatumGetCString, and CFuncHashTabEntry::user_fn.

Referenced by fmgr_info_cxt_security().

{
    CFuncHashTabEntry *hashentry;
    PGFunction  user_fn;
    const Pg_finfo_record *inforec;
    bool        isnull;

    /*
     * See if we have the function address cached already
     */
    hashentry = lookup_C_func(procedureTuple);
    if (hashentry)
    {
        user_fn = hashentry->user_fn;
        inforec = hashentry->inforec;
    }
    else
    {
        Datum       prosrcattr,
                    probinattr;
        char       *prosrcstring,
                   *probinstring;
        void       *libraryhandle;

        /*
         * Get prosrc and probin strings (link symbol and library filename).
         * While in general these columns might be null, that's not allowed
         * for C-language functions.
         */
        prosrcattr = SysCacheGetAttr(PROCOID, procedureTuple,
                                     Anum_pg_proc_prosrc, &isnull);
        if (isnull)
            elog(ERROR, "null prosrc for C function %u", functionId);
        prosrcstring = TextDatumGetCString(prosrcattr);

        probinattr = SysCacheGetAttr(PROCOID, procedureTuple,
                                     Anum_pg_proc_probin, &isnull);
        if (isnull)
            elog(ERROR, "null probin for C function %u", functionId);
        probinstring = TextDatumGetCString(probinattr);

        /* Look up the function itself */
        user_fn = load_external_function(probinstring, prosrcstring, true,
                                         &libraryhandle);

        /* Get the function information record (real or default) */
        inforec = fetch_finfo_record(libraryhandle, prosrcstring);

        /* Cache the addresses for later calls */
        record_C_func(procedureTuple, user_fn, inforec);

        pfree(prosrcstring);
        pfree(probinstring);
    }

    switch (inforec->api_version)
    {
        case 1:
            /* New style: call directly */
            finfo->fn_addr = user_fn;
            break;
        default:
            /* Shouldn't get here if fetch_finfo_record did its job */
            elog(ERROR, "unrecognized function API version: %d",
                 inforec->api_version);
            break;
    }
}

fmgr_info_copy()

void fmgr_info_copy	(	FmgrInfo *	dstinfo,
		FmgrInfo *	srcinfo,
		MemoryContext	destcxt
	)

Definition at line 612 of file fmgr.c.

References FmgrInfo::fn_extra, and FmgrInfo::fn_mcxt.

Referenced by bringetbitmap(), find_partition_scheme(), gistrescan(), inclusion_get_procinfo(), initBloomState(), initGinState(), initGISTstate(), perform_pruning_base_step(), satisfies_hash_partition(), ScanKeyEntryInitializeWithInfo(), and spgbeginscan().

{
    memcpy(dstinfo, srcinfo, sizeof(FmgrInfo));
    dstinfo->fn_mcxt = destcxt;
    dstinfo->fn_extra = NULL;
}

fmgr_info_cxt()

void fmgr_info_cxt	(	Oid	functionId,
		FmgrInfo *	finfo,
		MemoryContext	mcxt
	)

Definition at line 136 of file fmgr.c.

References fmgr_info_cxt_security().

Referenced by array_in(), array_out(), array_position_common(), array_positions(), array_recv(), array_send(), array_to_text_internal(), build_concat_foutcache(), CatalogCacheInitializeCache(), compile_plperl_function(), compile_pltcl_function(), domain_state_setup(), ExecInitWindowAgg(), get_range_io_data(), hstore_from_record(), hstore_populate_record(), inclusion_get_strategy_procinfo(), index_getprocinfo(), init_sexpr(), InitializeClientEncoding(), InitializeRelfilenodeMap(), load_rangetype_info(), lookup_ts_dictionary_cache(), lookup_ts_parser_cache(), lookup_type_cache(), minmax_get_strategy_procinfo(), mode_final(), perform_pruning_base_step(), plperl_spi_prepare(), pltcl_SPI_prepare(), PLy_input_setup_func(), PLy_output_setup_func(), PLyString_ToComposite(), prepare_column_cache(), PrepareClientEncoding(), preparePresortedCols(), PrepareSortSupportComparisonShim(), record_in(), record_out(), record_recv(), record_send(), RelationBuildPartitionKey(), and ri_HashCompareOp().

{
    fmgr_info_cxt_security(functionId, finfo, mcxt, false);
}

fmgr_info_cxt_security()

static void fmgr_info_cxt_security ( Oid  functionId, FmgrInfo *  finfo, MemoryContext  mcxt, bool  ignore_security  )

static

Definition at line 146 of file fmgr.c.

References elog, ereport, errcode(), errmsg(), ERROR, fmgr_info_C_lang(), fmgr_info_other_lang(), fmgr_isbuiltin(), fmgr_lookupByName(), fmgr_security_definer(), fmgr_sql(), FmgrHookIsNeeded, FmgrInfo::fn_addr, FmgrInfo::fn_expr, FmgrInfo::fn_extra, FmgrInfo::fn_mcxt, FmgrInfo::fn_nargs, FmgrInfo::fn_oid, FmgrInfo::fn_retset, FmgrInfo::fn_stats, FmgrInfo::fn_strict, FmgrBuiltin::func, GETSTRUCT, heap_attisnull(), HeapTupleIsValid, InvalidOid, FmgrBuiltin::nargs, ObjectIdGetDatum, pfree(), PROCOID, ReleaseSysCache(), FmgrBuiltin::retset, SearchSysCache1(), FmgrBuiltin::strict, SysCacheGetAttr(), TextDatumGetCString, TRACK_FUNC_ALL, TRACK_FUNC_OFF, and TRACK_FUNC_PL.

Referenced by fmgr_info(), fmgr_info_cxt(), fmgr_info_other_lang(), and fmgr_security_definer().

{
    const FmgrBuiltin *fbp;
    HeapTuple   procedureTuple;
    Form_pg_proc procedureStruct;
    Datum       prosrcdatum;
    bool        isnull;
    char       *prosrc;

    /*
     * fn_oid *must* be filled in last.  Some code assumes that if fn_oid is
     * valid, the whole struct is valid.  Some FmgrInfo struct's do survive
     * elogs.
     */
    finfo->fn_oid = InvalidOid;
    finfo->fn_extra = NULL;
    finfo->fn_mcxt = mcxt;
    finfo->fn_expr = NULL;      /* caller may set this later */

    if ((fbp = fmgr_isbuiltin(functionId)) != NULL)
    {
        /*
         * Fast path for builtin functions: don't bother consulting pg_proc
         */
        finfo->fn_nargs = fbp->nargs;
        finfo->fn_strict = fbp->strict;
        finfo->fn_retset = fbp->retset;
        finfo->fn_stats = TRACK_FUNC_ALL;   /* ie, never track */
        finfo->fn_addr = fbp->func;
        finfo->fn_oid = functionId;
        return;
    }

    /* Otherwise we need the pg_proc entry */
    procedureTuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(functionId));
    if (!HeapTupleIsValid(procedureTuple))
        elog(ERROR, "cache lookup failed for function %u", functionId);
    procedureStruct = (Form_pg_proc) GETSTRUCT(procedureTuple);

    finfo->fn_nargs = procedureStruct->pronargs;
    finfo->fn_strict = procedureStruct->proisstrict;
    finfo->fn_retset = procedureStruct->proretset;

    /*
     * If it has prosecdef set, non-null proconfig, or if a plugin wants to
     * hook function entry/exit, use fmgr_security_definer call handler ---
     * unless we are being called again by fmgr_security_definer or
     * fmgr_info_other_lang.
     *
     * When using fmgr_security_definer, function stats tracking is always
     * disabled at the outer level, and instead we set the flag properly in
     * fmgr_security_definer's private flinfo and implement the tracking
     * inside fmgr_security_definer.  This loses the ability to charge the
     * overhead of fmgr_security_definer to the function, but gains the
     * ability to set the track_functions GUC as a local GUC parameter of an
     * interesting function and have the right things happen.
     */
    if (!ignore_security &&
        (procedureStruct->prosecdef ||
         !heap_attisnull(procedureTuple, Anum_pg_proc_proconfig, NULL) ||
         FmgrHookIsNeeded(functionId)))
    {
        finfo->fn_addr = fmgr_security_definer;
        finfo->fn_stats = TRACK_FUNC_ALL;   /* ie, never track */
        finfo->fn_oid = functionId;
        ReleaseSysCache(procedureTuple);
        return;
    }

    switch (procedureStruct->prolang)
    {
        case INTERNALlanguageId:

            /*
             * For an ordinary builtin function, we should never get here
             * because the fmgr_isbuiltin() search above will have succeeded.
             * However, if the user has done a CREATE FUNCTION to create an
             * alias for a builtin function, we can end up here.  In that case
             * we have to look up the function by name.  The name of the
             * internal function is stored in prosrc (it doesn't have to be
             * the same as the name of the alias!)
             */
            prosrcdatum = SysCacheGetAttr(PROCOID, procedureTuple,
                                          Anum_pg_proc_prosrc, &isnull);
            if (isnull)
                elog(ERROR, "null prosrc");
            prosrc = TextDatumGetCString(prosrcdatum);
            fbp = fmgr_lookupByName(prosrc);
            if (fbp == NULL)
                ereport(ERROR,
                        (errcode(ERRCODE_UNDEFINED_FUNCTION),
                         errmsg("internal function \"%s\" is not in internal lookup table",
                                prosrc)));
            pfree(prosrc);
            /* Should we check that nargs, strict, retset match the table? */
            finfo->fn_addr = fbp->func;
            /* note this policy is also assumed in fast path above */
            finfo->fn_stats = TRACK_FUNC_ALL;   /* ie, never track */
            break;

        case ClanguageId:
            fmgr_info_C_lang(functionId, finfo, procedureTuple);
            finfo->fn_stats = TRACK_FUNC_PL;    /* ie, track if ALL */
            break;

        case SQLlanguageId:
            finfo->fn_addr = fmgr_sql;
            finfo->fn_stats = TRACK_FUNC_PL;    /* ie, track if ALL */
            break;

        default:
            fmgr_info_other_lang(functionId, finfo, procedureTuple);
            finfo->fn_stats = TRACK_FUNC_OFF;   /* ie, track if not OFF */
            break;
    }

    finfo->fn_oid = functionId;
    ReleaseSysCache(procedureTuple);
}

fmgr_info_other_lang()

static void fmgr_info_other_lang ( Oid  functionId, FmgrInfo *  finfo, HeapTuple  procedureTuple  )

static

Definition at line 435 of file fmgr.c.

References CurrentMemoryContext, elog, ERROR, fmgr_info_cxt_security(), FmgrInfo::fn_addr, GETSTRUCT, HeapTupleIsValid, LANGOID, ObjectIdGetDatum, ReleaseSysCache(), and SearchSysCache1().

Referenced by fmgr_info_cxt_security().

{
    Form_pg_proc procedureStruct = (Form_pg_proc) GETSTRUCT(procedureTuple);
    Oid         language = procedureStruct->prolang;
    HeapTuple   languageTuple;
    Form_pg_language languageStruct;
    FmgrInfo    plfinfo;

    languageTuple = SearchSysCache1(LANGOID, ObjectIdGetDatum(language));
    if (!HeapTupleIsValid(languageTuple))
        elog(ERROR, "cache lookup failed for language %u", language);
    languageStruct = (Form_pg_language) GETSTRUCT(languageTuple);

    /*
     * Look up the language's call handler function, ignoring any attributes
     * that would normally cause insertion of fmgr_security_definer.  We need
     * to get back a bare pointer to the actual C-language function.
     */
    fmgr_info_cxt_security(languageStruct->lanplcallfoid, &plfinfo,
                           CurrentMemoryContext, true);
    finfo->fn_addr = plfinfo.fn_addr;

    ReleaseSysCache(languageTuple);
}

fmgr_internal_function()

Oid fmgr_internal_function

(

const char *

proname

)

Definition at line 627 of file fmgr.c.

References fmgr_lookupByName(), FmgrBuiltin::foid, and InvalidOid.

Referenced by fmgr_internal_validator().

{
    const FmgrBuiltin *fbp = fmgr_lookupByName(proname);

    if (fbp == NULL)
        return InvalidOid;
    return fbp->foid;
}

fmgr_isbuiltin()

static const FmgrBuiltin* fmgr_isbuiltin ( Oid  id )

static

Definition at line 75 of file fmgr.c.

References fmgr_builtin_oid_index, fmgr_builtins, fmgr_last_builtin_oid, and InvalidOidBuiltinMapping.

Referenced by fmgr_info_cxt_security().

{
    uint16      index;

    /* fast lookup only possible if original oid still assigned */
    if (id > fmgr_last_builtin_oid)
        return NULL;

    /*
     * Lookup function data. If there's a miss in that range it's likely a
     * nonexistent function, returning NULL here will trigger an ERROR later.
     */
    index = fmgr_builtin_oid_index[id];
    if (index == InvalidOidBuiltinMapping)
        return NULL;

    return &fmgr_builtins[index];
}

fmgr_lookupByName()

static const FmgrBuiltin* fmgr_lookupByName ( const char *  name )

static

Definition at line 100 of file fmgr.c.

References fmgr_builtins, fmgr_nbuiltins, and i.

Referenced by fmgr_info_cxt_security(), and fmgr_internal_function().

{
    int         i;

    for (i = 0; i < fmgr_nbuiltins; i++)
    {
        if (strcmp(name, fmgr_builtins[i].funcName) == 0)
            return fmgr_builtins + i;
    }
    return NULL;
}

fmgr_security_definer()

Datum fmgr_security_definer

(

PG_FUNCTION_ARGS

)

Definition at line 662 of file fmgr.c.

References fmgr_security_definer_cache::arg, AtEOXact_GUC(), DatumGetArrayTypePCopy, elog, ERROR, ExprMultipleResult, FHET_ABORT, FHET_END, FHET_START, fmgr_security_definer_cache::flinfo, fmgr_hook, fmgr_info_cxt_security(), FmgrInfo::fn_expr, FmgrInfo::fn_extra, FmgrInfo::fn_mcxt, FunctionCallInvoke, GETSTRUCT, GetUserIdAndSecContext(), GUC_ACTION_SAVE, HeapTupleIsValid, IsA, MemoryContextAllocZero(), MemoryContextSwitchTo(), NewGUCNestLevel(), ObjectIdGetDatum, OidIsValid, PG_CATCH, PG_END_TRY, PG_RE_THROW, PG_TRY, PGC_S_SESSION, PGC_SUSET, PGC_USERSET, pgstat_end_function_usage(), pgstat_init_function_usage(), ProcessGUCArray(), PROCOID, fmgr_security_definer_cache::proconfig, ReleaseSysCache(), SearchSysCache1(), SECURITY_LOCAL_USERID_CHANGE, SetUserIdAndSecContext(), superuser(), SysCacheGetAttr(), and fmgr_security_definer_cache::userid.

Referenced by fmgr_info_cxt_security().

{
    Datum       result;
    struct fmgr_security_definer_cache *volatile fcache;
    FmgrInfo   *save_flinfo;
    Oid         save_userid;
    int         save_sec_context;
    volatile int save_nestlevel;
    PgStat_FunctionCallUsage fcusage;

    if (!fcinfo->flinfo->fn_extra)
    {
        HeapTuple   tuple;
        Form_pg_proc procedureStruct;
        Datum       datum;
        bool        isnull;
        MemoryContext oldcxt;

        fcache = MemoryContextAllocZero(fcinfo->flinfo->fn_mcxt,
                                        sizeof(*fcache));

        fmgr_info_cxt_security(fcinfo->flinfo->fn_oid, &fcache->flinfo,
                               fcinfo->flinfo->fn_mcxt, true);
        fcache->flinfo.fn_expr = fcinfo->flinfo->fn_expr;

        tuple = SearchSysCache1(PROCOID,
                                ObjectIdGetDatum(fcinfo->flinfo->fn_oid));
        if (!HeapTupleIsValid(tuple))
            elog(ERROR, "cache lookup failed for function %u",
                 fcinfo->flinfo->fn_oid);
        procedureStruct = (Form_pg_proc) GETSTRUCT(tuple);

        if (procedureStruct->prosecdef)
            fcache->userid = procedureStruct->proowner;

        datum = SysCacheGetAttr(PROCOID, tuple, Anum_pg_proc_proconfig,
                                &isnull);
        if (!isnull)
        {
            oldcxt = MemoryContextSwitchTo(fcinfo->flinfo->fn_mcxt);
            fcache->proconfig = DatumGetArrayTypePCopy(datum);
            MemoryContextSwitchTo(oldcxt);
        }

        ReleaseSysCache(tuple);

        fcinfo->flinfo->fn_extra = fcache;
    }
    else
        fcache = fcinfo->flinfo->fn_extra;

    /* GetUserIdAndSecContext is cheap enough that no harm in a wasted call */
    GetUserIdAndSecContext(&save_userid, &save_sec_context);
    if (fcache->proconfig)      /* Need a new GUC nesting level */
        save_nestlevel = NewGUCNestLevel();
    else
        save_nestlevel = 0;     /* keep compiler quiet */

    if (OidIsValid(fcache->userid))
        SetUserIdAndSecContext(fcache->userid,
                               save_sec_context | SECURITY_LOCAL_USERID_CHANGE);

    if (fcache->proconfig)
    {
        ProcessGUCArray(fcache->proconfig,
                        (superuser() ? PGC_SUSET : PGC_USERSET),
                        PGC_S_SESSION,
                        GUC_ACTION_SAVE);
    }

    /* function manager hook */
    if (fmgr_hook)
        (*fmgr_hook) (FHET_START, &fcache->flinfo, &fcache->arg);

    /*
     * We don't need to restore GUC or userid settings on error, because the
     * ensuing xact or subxact abort will do that.  The PG_TRY block is only
     * needed to clean up the flinfo link.
     */
    save_flinfo = fcinfo->flinfo;

    PG_TRY();
    {
        fcinfo->flinfo = &fcache->flinfo;

        /* See notes in fmgr_info_cxt_security */
        pgstat_init_function_usage(fcinfo, &fcusage);

        result = FunctionCallInvoke(fcinfo);

        /*
         * We could be calling either a regular or a set-returning function,
         * so we have to test to see what finalize flag to use.
         */
        pgstat_end_function_usage(&fcusage,
                                  (fcinfo->resultinfo == NULL ||
                                   !IsA(fcinfo->resultinfo, ReturnSetInfo) ||
                                   ((ReturnSetInfo *) fcinfo->resultinfo)->isDone != ExprMultipleResult));
    }
    PG_CATCH();
    {
        fcinfo->flinfo = save_flinfo;
        if (fmgr_hook)
            (*fmgr_hook) (FHET_ABORT, &fcache->flinfo, &fcache->arg);
        PG_RE_THROW();
    }
    PG_END_TRY();

    fcinfo->flinfo = save_flinfo;

    if (fcache->proconfig)
        AtEOXact_GUC(true, save_nestlevel);
    if (OidIsValid(fcache->userid))
        SetUserIdAndSecContext(save_userid, save_sec_context);
    if (fmgr_hook)
        (*fmgr_hook) (FHET_END, &fcache->flinfo, &fcache->arg);

    return result;
}

fmgr_symbol()

void fmgr_symbol	(	Oid	functionId,
		char **	mod,
		char **	fn
	)

Definition at line 283 of file fmgr.c.

References elog, ERROR, FmgrHookIsNeeded, GETSTRUCT, heap_attisnull(), HeapTupleIsValid, ObjectIdGetDatum, PROCOID, pstrdup(), ReleaseSysCache(), SearchSysCache1(), SysCacheGetAttr(), and TextDatumGetCString.

Referenced by llvm_function_reference().

{
    HeapTuple   procedureTuple;
    Form_pg_proc procedureStruct;
    bool        isnull;
    Datum       prosrcattr;
    Datum       probinattr;

    /* Otherwise we need the pg_proc entry */
    procedureTuple = SearchSysCache1(PROCOID, ObjectIdGetDatum(functionId));
    if (!HeapTupleIsValid(procedureTuple))
        elog(ERROR, "cache lookup failed for function %u", functionId);
    procedureStruct = (Form_pg_proc) GETSTRUCT(procedureTuple);

    /*
     */
    if (procedureStruct->prosecdef ||
        !heap_attisnull(procedureTuple, Anum_pg_proc_proconfig, NULL) ||
        FmgrHookIsNeeded(functionId))
    {
        *mod = NULL;            /* core binary */
        *fn = pstrdup("fmgr_security_definer");
        ReleaseSysCache(procedureTuple);
        return;
    }

    /* see fmgr_info_cxt_security for the individual cases */
    switch (procedureStruct->prolang)
    {
        case INTERNALlanguageId:
            prosrcattr = SysCacheGetAttr(PROCOID, procedureTuple,
                                         Anum_pg_proc_prosrc, &isnull);
            if (isnull)
                elog(ERROR, "null prosrc");

            *mod = NULL;        /* core binary */
            *fn = TextDatumGetCString(prosrcattr);
            break;

        case ClanguageId:
            prosrcattr = SysCacheGetAttr(PROCOID, procedureTuple,
                                         Anum_pg_proc_prosrc, &isnull);
            if (isnull)
                elog(ERROR, "null prosrc for C function %u", functionId);

            probinattr = SysCacheGetAttr(PROCOID, procedureTuple,
                                         Anum_pg_proc_probin, &isnull);
            if (isnull)
                elog(ERROR, "null probin for C function %u", functionId);

            /*
             * No need to check symbol presence / API version here, already
             * checked in fmgr_info_cxt_security.
             */
            *mod = TextDatumGetCString(probinattr);
            *fn = TextDatumGetCString(prosrcattr);
            break;

        case SQLlanguageId:
            *mod = NULL;        /* core binary */
            *fn = pstrdup("fmgr_sql");
            break;

        default:
            *mod = NULL;
            *fn = NULL;         /* unknown, pass pointer */
            break;
    }

    ReleaseSysCache(procedureTuple);
}

FunctionCall0Coll()

Datum FunctionCall0Coll	(	FmgrInfo *	flinfo,
		Oid	collation
	)

Definition at line 1115 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by OidFunctionCall0Coll().

{
    LOCAL_FCINFO(fcinfo, 0);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 0, collation, NULL, NULL);

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall1Coll()

Datum FunctionCall1Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1
	)

Definition at line 1132 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by _hash_datum2hashkey(), brin_inclusion_add_value(), element_hash(), ExecHashBuildSkewHash(), ExecHashGetHashValue(), gistdentryinit(), gistFetchAtt(), gistFormTuple(), hash_range(), OidFunctionCall1Coll(), signValue(), spgdoinsert(), and TupleHashTableHash_internal().

{
    LOCAL_FCINFO(fcinfo, 1);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 1, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall2Coll()

Datum FunctionCall2Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2
	)

Definition at line 1152 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by _bt_check_rowcompare(), _bt_checkkeys(), _bt_compare(), _bt_compare_array_elements(), _bt_compare_scankey_args(), _bt_find_extreme_element(), _bt_keep_natts(), _hash_checkqual(), array_position_common(), array_positions(), brin_inclusion_add_value(), brin_inclusion_consistent(), brin_inclusion_union(), brin_minmax_add_value(), brin_minmax_consistent(), brin_minmax_union(), call_subtype_diff(), cmpEntries(), compute_distinct_stats(), compute_partition_hash_value(), compute_range_stats(), create_range_bounds(), doPickSplit(), element_compare(), execTuplesUnequal(), genericPickSplit(), get_distance(), get_position(), get_stats_slot_range(), ginCompareEntries(), gistMakeUnionItVec(), gistMakeUnionKey(), gistUserPicksplit(), hash_range_extended(), ineq_histogram_selectivity(), make_greater_string(), mcv_get_match_bitmap(), merge_list_bounds(), mode_final(), OidFunctionCall2Coll(), partition_list_bsearch(), partition_rbound_cmp(), partition_rbound_datum_cmp(), process_ordered_aggregate_single(), qsort_partition_list_value_cmp(), range_cmp_bound_values(), range_cmp_bounds(), range_contains_elem_internal(), ri_AttributesEqual(), satisfies_hash_partition(), spgdoinsert(), spgGetCache(), spgInnerTest(), spgLeafTest(), and tuples_equal().

{
    LOCAL_FCINFO(fcinfo, 2);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 2, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall3Coll()

Datum FunctionCall3Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3
	)

Definition at line 1174 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by bringetbitmap(), ginExtractEntries(), gistKeyIsEQ(), gistpenalty(), OidFunctionCall3Coll(), and union_tuples().

{
    LOCAL_FCINFO(fcinfo, 3);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 3, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall4Coll()

Datum FunctionCall4Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4
	)

Definition at line 1199 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by brinbuildCallback(), brininsert(), collectMatchBitmap(), matchPartialInPendingList(), OidFunctionCall4Coll(), and scalararraysel().

{
    LOCAL_FCINFO(fcinfo, 4);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 4, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall5Coll()

Datum FunctionCall5Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5
	)

Definition at line 1226 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by gistindex_keytest(), OidFunctionCall5Coll(), scalararraysel(), update_frameheadpos(), and update_frametailpos().

{
    LOCAL_FCINFO(fcinfo, 5);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 5, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall6Coll()

Datum FunctionCall6Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6
	)

Definition at line 1255 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by OidFunctionCall6Coll().

{
    LOCAL_FCINFO(fcinfo, 6);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 6, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall7Coll()

Datum FunctionCall7Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7
	)

Definition at line 1287 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by directTriConsistentFn(), gincost_pattern(), OidFunctionCall7Coll(), and shimBoolConsistentFn().

{
    LOCAL_FCINFO(fcinfo, 7);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 7, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;
    fcinfo->args[6].value = arg7;
    fcinfo->args[6].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall8Coll()

Datum FunctionCall8Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7,
		Datum	arg8
	)

Definition at line 1321 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by directBoolConsistentFn(), and OidFunctionCall8Coll().

{
    LOCAL_FCINFO(fcinfo, 8);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 8, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;
    fcinfo->args[6].value = arg7;
    fcinfo->args[6].isnull = false;
    fcinfo->args[7].value = arg8;
    fcinfo->args[7].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

FunctionCall9Coll()

Datum FunctionCall9Coll	(	FmgrInfo *	flinfo,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7,
		Datum	arg8,
		Datum	arg9
	)

Definition at line 1357 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FunctionCallInvoke, InitFunctionCallInfoData, and LOCAL_FCINFO.

Referenced by OidFunctionCall9Coll().

{
    LOCAL_FCINFO(fcinfo, 9);
    Datum       result;

    InitFunctionCallInfoData(*fcinfo, flinfo, 9, collation, NULL, NULL);

    fcinfo->args[0].value = arg1;
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = arg2;
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = arg3;
    fcinfo->args[2].isnull = false;
    fcinfo->args[3].value = arg4;
    fcinfo->args[3].isnull = false;
    fcinfo->args[4].value = arg5;
    fcinfo->args[4].isnull = false;
    fcinfo->args[5].value = arg6;
    fcinfo->args[5].isnull = false;
    fcinfo->args[6].value = arg7;
    fcinfo->args[6].isnull = false;
    fcinfo->args[7].value = arg8;
    fcinfo->args[7].isnull = false;
    fcinfo->args[8].value = arg9;
    fcinfo->args[8].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Check for null result, since caller is clearly not expecting one */
    if (fcinfo->isnull)
        elog(ERROR, "function %u returned NULL", flinfo->fn_oid);

    return result;
}

get_call_expr_arg_stable()

bool get_call_expr_arg_stable	(	Node *	expr,
		int	argnum
	)

Definition at line 1888 of file fmgr.c.

References fmgr_security_definer_cache::arg, generate_unaccent_rules::args, IsA, list_length(), list_nth(), and PARAM_EXTERN.

Referenced by get_fn_expr_arg_stable().

{
    List       *args;
    Node       *arg;

    if (expr == NULL)
        return false;

    if (IsA(expr, FuncExpr))
        args = ((FuncExpr *) expr)->args;
    else if (IsA(expr, OpExpr))
        args = ((OpExpr *) expr)->args;
    else if (IsA(expr, DistinctExpr))
        args = ((DistinctExpr *) expr)->args;
    else if (IsA(expr, ScalarArrayOpExpr))
        args = ((ScalarArrayOpExpr *) expr)->args;
    else if (IsA(expr, NullIfExpr))
        args = ((NullIfExpr *) expr)->args;
    else if (IsA(expr, WindowFunc))
        args = ((WindowFunc *) expr)->args;
    else
        return false;

    if (argnum < 0 || argnum >= list_length(args))
        return false;

    arg = (Node *) list_nth(args, argnum);

    /*
     * Either a true Const or an external Param will have a value that doesn't
     * change during the execution of the query.  In future we might want to
     * consider other cases too, e.g. now().
     */
    if (IsA(arg, Const))
        return true;
    if (IsA(arg, Param) &&
        ((Param *) arg)->paramkind == PARAM_EXTERN)
        return true;

    return false;
}

get_call_expr_argtype()

Oid get_call_expr_argtype	(	Node *	expr,
		int	argnum
	)

Definition at line 1823 of file fmgr.c.

References generate_unaccent_rules::args, exprType(), get_base_element_type(), InvalidOid, IsA, list_length(), and list_nth().

Referenced by get_fn_expr_argtype(), prepare_sql_fn_parse_info(), resolve_polymorphic_argtypes(), and resolve_polymorphic_tupdesc().

{
    List       *args;
    Oid         argtype;

    if (expr == NULL)
        return InvalidOid;

    if (IsA(expr, FuncExpr))
        args = ((FuncExpr *) expr)->args;
    else if (IsA(expr, OpExpr))
        args = ((OpExpr *) expr)->args;
    else if (IsA(expr, DistinctExpr))
        args = ((DistinctExpr *) expr)->args;
    else if (IsA(expr, ScalarArrayOpExpr))
        args = ((ScalarArrayOpExpr *) expr)->args;
    else if (IsA(expr, NullIfExpr))
        args = ((NullIfExpr *) expr)->args;
    else if (IsA(expr, WindowFunc))
        args = ((WindowFunc *) expr)->args;
    else
        return InvalidOid;

    if (argnum < 0 || argnum >= list_length(args))
        return InvalidOid;

    argtype = exprType((Node *) list_nth(args, argnum));

    /*
     * special hack for ScalarArrayOpExpr: what the underlying function will
     * actually get passed is the element type of the array.
     */
    if (IsA(expr, ScalarArrayOpExpr) &&
        argnum == 1)
        argtype = get_base_element_type(argtype);

    return argtype;
}

get_fn_expr_arg_stable()

bool get_fn_expr_arg_stable	(	FmgrInfo *	flinfo,
		int	argnum
	)

Definition at line 1869 of file fmgr.c.

References FmgrInfo::fn_expr, and get_call_expr_arg_stable().

Referenced by extract_variadic_args(), leadlag_common(), and window_nth_value().

{
    /*
     * can't return anything useful if we have no FmgrInfo or if its fn_expr
     * node has not been initialized
     */
    if (!flinfo || !flinfo->fn_expr)
        return false;

    return get_call_expr_arg_stable(flinfo->fn_expr, argnum);
}

get_fn_expr_argtype()

Oid get_fn_expr_argtype	(	FmgrInfo *	flinfo,
		int	argnum
	)

Definition at line 1804 of file fmgr.c.

References FmgrInfo::fn_expr, get_call_expr_argtype(), and InvalidOid.

Referenced by array_agg_array_transfn(), array_agg_transfn(), array_fill(), array_fill_with_lower_bounds(), build_concat_foutcache(), concat_internal(), count_nulls(), dblink_close(), dblink_exec(), dblink_fetch(), dblink_open(), dblink_record_internal(), enum_first(), enum_last(), enum_range_all(), enum_range_bounds(), extract_variadic_args(), fetch_array_arg_replace_nulls(), get_record_type_from_argument(), hstore_from_record(), hstore_populate_record(), hypothetical_check_argtypes(), json_agg_transfn(), json_object_agg_transfn(), jsonb_agg_transfn(), jsonb_object_agg_transfn(), pg_collation_for(), pg_column_size(), pg_typeof(), satisfies_hash_partition(), text_format(), to_json(), and to_jsonb().

{
    /*
     * can't return anything useful if we have no FmgrInfo or if its fn_expr
     * node has not been initialized
     */
    if (!flinfo || !flinfo->fn_expr)
        return InvalidOid;

    return get_call_expr_argtype(flinfo->fn_expr, argnum);
}

get_fn_expr_rettype()

Oid get_fn_expr_rettype

(

FmgrInfo *

flinfo

)

Definition at line 1782 of file fmgr.c.

References exprType(), FmgrInfo::fn_expr, and InvalidOid.

Referenced by do_compile(), range_constructor2(), and range_constructor3().

{
    Node       *expr;

    /*
     * can't return anything useful if we have no FmgrInfo or if its fn_expr
     * node has not been initialized
     */
    if (!flinfo || !flinfo->fn_expr)
        return InvalidOid;

    expr = flinfo->fn_expr;

    return exprType(expr);
}

get_fn_expr_variadic()

bool get_fn_expr_variadic

(

FmgrInfo *

flinfo

)

Definition at line 1938 of file fmgr.c.

References FmgrInfo::fn_expr, and IsA.

Referenced by concat_internal(), count_nulls(), extract_variadic_args(), satisfies_hash_partition(), and text_format().

{
    Node       *expr;

    /*
     * can't return anything useful if we have no FmgrInfo or if its fn_expr
     * node has not been initialized
     */
    if (!flinfo || !flinfo->fn_expr)
        return false;

    expr = flinfo->fn_expr;

    if (IsA(expr, FuncExpr))
        return ((FuncExpr *) expr)->funcvariadic;
    else
        return false;
}

get_fn_opclass_options()

bytea* get_fn_opclass_options

(

FmgrInfo *

flinfo

)

Definition at line 1991 of file fmgr.c.

References Const::constisnull, Const::consttype, Const::constvalue, DatumGetByteaP, ereport, errcode(), errmsg(), ERROR, FmgrInfo::fn_expr, and IsA.

{
    if (flinfo && flinfo->fn_expr && IsA(flinfo->fn_expr, Const))
    {
        Const      *expr = (Const *) flinfo->fn_expr;

        if (expr->consttype == BYTEAOID)
            return expr->constisnull ? NULL : DatumGetByteaP(expr->constvalue);
    }

    ereport(ERROR,
            (errcode(ERRCODE_INVALID_PARAMETER_VALUE),
             errmsg("opclass options info is absent in function call context")));

    return NULL;
}

has_fn_opclass_options()

bool has_fn_opclass_options

(

FmgrInfo *

flinfo

)

Definition at line 1975 of file fmgr.c.

References Const::constisnull, Const::consttype, FmgrInfo::fn_expr, and IsA.

{
    if (flinfo && flinfo->fn_expr && IsA(flinfo->fn_expr, Const))
    {
        Const      *expr = (Const *) flinfo->fn_expr;

        if (expr->consttype == BYTEAOID)
            return !expr->constisnull;
    }
    return false;
}

InputFunctionCall()

Datum InputFunctionCall	(	FmgrInfo *	flinfo,
		char *	str,
		Oid	typioparam,
		int32	typmod
	)

Definition at line 1533 of file fmgr.c.

References CStringGetDatum, elog, ERROR, FmgrInfo::fn_oid, FmgrInfo::fn_strict, FunctionCallInvoke, InitFunctionCallInfoData, Int32GetDatum, InvalidOid, LOCAL_FCINFO, and ObjectIdGetDatum.

Referenced by BuildTupleFromCStrings(), domain_in(), hstore_populate_record(), make_tuple_from_result_row(), NextCopyFrom(), OidInputFunctionCall(), plperl_sv_to_datum(), pltcl_func_handler(), pltcl_returnnext(), pltcl_SPI_execute_plan(), PLyObject_ToScalar(), PLyString_ToComposite(), populate_scalar(), range_in(), ReadArrayStr(), record_in(), and XmlTableGetValue().

{
    LOCAL_FCINFO(fcinfo, 3);
    Datum       result;

    if (str == NULL && flinfo->fn_strict)
        return (Datum) 0;       /* just return null result */

    InitFunctionCallInfoData(*fcinfo, flinfo, 3, InvalidOid, NULL, NULL);

    fcinfo->args[0].value = CStringGetDatum(str);
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = ObjectIdGetDatum(typioparam);
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = Int32GetDatum(typmod);
    fcinfo->args[2].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Should get null result if and only if str is NULL */
    if (str == NULL)
    {
        if (!fcinfo->isnull)
            elog(ERROR, "input function %u returned non-NULL",
                 flinfo->fn_oid);
    }
    else
    {
        if (fcinfo->isnull)
            elog(ERROR, "input function %u returned NULL",
                 flinfo->fn_oid);
    }

    return result;
}

Int64GetDatum()

Datum Int64GetDatum

(

int64

X

)

Definition at line 1701 of file fmgr.c.

References palloc(), and PointerGetDatum.

Referenced by brin_metapage_info(), brin_summarize_new_values(), build_minmax_path(), cash_numeric(), DefineSequence(), ExecEvalNextValueExpr(), executeKeyValueMethod(), gbt_num_fetch(), generate_series_step_int8(), gin_metapage_info(), gin_page_opaque_info(), hash_array_extended(), hash_bitmap_info(), hash_metapage_info(), hash_page_items(), hash_page_stats(), int4_cash(), int64_to_numeric(), int8_cash(), int8_to_char(), int8range_canonical(), leftmostvalue_int8(), leftmostvalue_money(), make_const(), numeric_avg(), numeric_cash(), numeric_half_rounded(), numeric_shift_right(), perform_work_item(), pg_buffercache_pages(), pg_control_system(), pg_get_replication_slots(), pg_get_shmem_allocations(), pg_ls_dir_files(), pg_sequence_parameters(), pg_size_bytes(), pg_stat_file(), pg_stat_get_archiver(), pg_stat_get_progress_info(), pg_stat_get_slru(), pg_stat_get_wal_senders(), pg_visibility_map_rel(), pg_visibility_map_summary(), pg_visibility_rel(), pgstatginindex_internal(), pgstathashindex(), pgstattuple_approx_internal(), StartReplication(), SV_to_JsonbValue(), and validate_index_callback().

{
    int64      *retval = (int64 *) palloc(sizeof(int64));

    *retval = X;
    return PointerGetDatum(retval);
}

lookup_C_func()

static CFuncHashTabEntry * lookup_C_func ( HeapTuple  procedureTuple )

static

Definition at line 532 of file fmgr.c.

References CFuncHashTabEntry::fn_tid, CFuncHashTabEntry::fn_xmin, GETSTRUCT, HASH_FIND, hash_search(), HeapTupleHeaderGetRawXmin, ItemPointerEquals(), HeapTupleData::t_data, and HeapTupleData::t_self.

Referenced by fmgr_info_C_lang().

{
    Oid         fn_oid = ((Form_pg_proc) GETSTRUCT(procedureTuple))->oid;
    CFuncHashTabEntry *entry;

    if (CFuncHash == NULL)
        return NULL;            /* no table yet */
    entry = (CFuncHashTabEntry *)
        hash_search(CFuncHash,
                    &fn_oid,
                    HASH_FIND,
                    NULL);
    if (entry == NULL)
        return NULL;            /* no such entry */
    if (entry->fn_xmin == HeapTupleHeaderGetRawXmin(procedureTuple->t_data) &&
        ItemPointerEquals(&entry->fn_tid, &procedureTuple->t_self))
        return entry;           /* OK */
    return NULL;                /* entry is out of date */
}

OidFunctionCall0Coll()

Datum OidFunctionCall0Coll	(	Oid	functionId,
		Oid	collation
	)

Definition at line 1404 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall0Coll().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall0Coll(&flinfo, collation);
}

OidFunctionCall1Coll()

Datum OidFunctionCall1Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1
	)

Definition at line 1414 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall1Coll().

Referenced by _bt_allequalimage(), and _hash_datum2hashkey_type().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall1Coll(&flinfo, collation, arg1);
}

OidFunctionCall2Coll()

Datum OidFunctionCall2Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2
	)

Definition at line 1424 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall2Coll().

Referenced by _bt_compare_scankey_args(), and index_recheck_constraint().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall2Coll(&flinfo, collation, arg1, arg2);
}

OidFunctionCall3Coll()

Datum OidFunctionCall3Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3
	)

Definition at line 1434 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall3Coll().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall3Coll(&flinfo, collation, arg1, arg2, arg3);
}

OidFunctionCall4Coll()

Datum OidFunctionCall4Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4
	)

Definition at line 1445 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall4Coll().

Referenced by restriction_selectivity().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall4Coll(&flinfo, collation, arg1, arg2, arg3, arg4);
}

OidFunctionCall5Coll()

Datum OidFunctionCall5Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5
	)

Definition at line 1456 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall5Coll().

Referenced by join_selectivity().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall5Coll(&flinfo, collation, arg1, arg2, arg3, arg4, arg5);
}

OidFunctionCall6Coll()

Datum OidFunctionCall6Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6
	)

Definition at line 1467 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall6Coll().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall6Coll(&flinfo, collation, arg1, arg2, arg3, arg4, arg5,
                             arg6);
}

OidFunctionCall7Coll()

Datum OidFunctionCall7Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7
	)

Definition at line 1480 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall7Coll().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall7Coll(&flinfo, collation, arg1, arg2, arg3, arg4, arg5,
                             arg6, arg7);
}

OidFunctionCall8Coll()

Datum OidFunctionCall8Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7,
		Datum	arg8
	)

Definition at line 1493 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall8Coll().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall8Coll(&flinfo, collation, arg1, arg2, arg3, arg4, arg5,
                             arg6, arg7, arg8);
}

OidFunctionCall9Coll()

Datum OidFunctionCall9Coll	(	Oid	functionId,
		Oid	collation,
		Datum	arg1,
		Datum	arg2,
		Datum	arg3,
		Datum	arg4,
		Datum	arg5,
		Datum	arg6,
		Datum	arg7,
		Datum	arg8,
		Datum	arg9
	)

Definition at line 1506 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and FunctionCall9Coll().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);

    return FunctionCall9Coll(&flinfo, collation, arg1, arg2, arg3, arg4, arg5,
                             arg6, arg7, arg8, arg9);
}

OidInputFunctionCall()

Datum OidInputFunctionCall	(	Oid	functionId,
		char *	str,
		Oid	typioparam,
		int32	typmod
	)

Definition at line 1648 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and InputFunctionCall().

Referenced by DefineAggregate(), exec_bind_message(), get_typdefault(), GetAggInitVal(), InsertOneValue(), parse_fcall_arguments(), slot_modify_cstrings(), slot_store_cstrings(), and stringTypeDatum().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);
    return InputFunctionCall(&flinfo, str, typioparam, typmod);
}

OidOutputFunctionCall()

char* OidOutputFunctionCall	(	Oid	functionId,
		Datum	val
	)

Definition at line 1657 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and OutputFunctionCall().

Referenced by BuildIndexValueDescription(), BuildParamLogString(), convert_value_to_string(), datum_to_json(), datum_to_jsonb(), debugtup(), deparseConst(), ExecBuildSlotPartitionKeyDescription(), ExecBuildSlotValueDescription(), get_const_expr(), InsertOneValue(), logicalrep_write_tuple(), map_sql_value_to_xml_value(), plperl_hash_from_tuple(), plperl_sv_to_literal(), pltcl_build_tuple_argument(), pltcl_set_tuple_values(), print_expr(), ri_ReportViolation(), SendFunctionResult(), set_limit(), SPI_getvalue(), and tuple_to_stringinfo().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);
    return OutputFunctionCall(&flinfo, val);
}

OidReceiveFunctionCall()

Datum OidReceiveFunctionCall	(	Oid	functionId,
		StringInfo	buf,
		Oid	typioparam,
		int32	typmod
	)

Definition at line 1666 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and ReceiveFunctionCall().

Referenced by exec_bind_message(), parse_fcall_arguments(), and parse_fcall_arguments_20().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);
    return ReceiveFunctionCall(&flinfo, buf, typioparam, typmod);
}

OidSendFunctionCall()

bytea* OidSendFunctionCall	(	Oid	functionId,
		Datum	val
	)

Definition at line 1676 of file fmgr.c.

References fmgr_security_definer_cache::flinfo, fmgr_info(), and SendFunctionCall().

Referenced by SendFunctionResult().

{
    FmgrInfo    flinfo;

    fmgr_info(functionId, &flinfo);
    return SendFunctionCall(&flinfo, val);
}

OutputFunctionCall()

char* OutputFunctionCall	(	FmgrInfo *	flinfo,
		Datum	val
	)

Definition at line 1577 of file fmgr.c.

References DatumGetCString, and FunctionCall1.

Referenced by array_out(), array_to_text_internal(), brin_page_items(), concat_internal(), convert_prep_stmt_params(), CopyOneRowTo(), hstore_from_record(), make_array_ref(), OidOutputFunctionCall(), plperl_call_perl_func(), pltcl_func_handler(), PLyString_FromScalar(), printtup(), printtup_20(), process_query_params(), range_out(), record_out(), text_format(), and text_format_string_conversion().

{
    return DatumGetCString(FunctionCall1(flinfo, val));
}

pg_detoast_datum()

struct varlena* pg_detoast_datum

(

struct varlena *

datum

)

Definition at line 1726 of file fmgr.c.

References detoast_attr(), and VARATT_IS_EXTENDED.

{
    if (VARATT_IS_EXTENDED(datum))
        return detoast_attr(datum);
    else
        return datum;
}

pg_detoast_datum_copy()

struct varlena* pg_detoast_datum_copy

(

struct varlena *

datum

)

Definition at line 1735 of file fmgr.c.

References detoast_attr(), palloc(), VARATT_IS_EXTENDED, and VARSIZE.

{
    if (VARATT_IS_EXTENDED(datum))
        return detoast_attr(datum);
    else
    {
        /* Make a modifiable copy of the varlena object */
        Size        len = VARSIZE(datum);
        struct varlena *result = (struct varlena *) palloc(len);

        memcpy(result, datum, len);
        return result;
    }
}

pg_detoast_datum_packed()

struct varlena* pg_detoast_datum_packed

(

struct varlena *

datum

)

Definition at line 1758 of file fmgr.c.

References detoast_attr(), VARATT_IS_COMPRESSED, and VARATT_IS_EXTERNAL.

Referenced by text_to_cstring(), and text_to_cstring_buffer().

{
    if (VARATT_IS_COMPRESSED(datum) || VARATT_IS_EXTERNAL(datum))
        return detoast_attr(datum);
    else
        return datum;
}

pg_detoast_datum_slice()

struct varlena* pg_detoast_datum_slice	(	struct varlena *	datum,
		int32	first,
		int32	count
	)

Definition at line 1751 of file fmgr.c.

References detoast_attr_slice().

{
    /* Only get the specified portion from the toast rel */
    return detoast_attr_slice(datum, first, count);
}

ReceiveFunctionCall()

Datum ReceiveFunctionCall	(	FmgrInfo *	flinfo,
		StringInfo	buf,
		Oid	typioparam,
		int32	typmod
	)

Definition at line 1591 of file fmgr.c.

References elog, ERROR, FmgrInfo::fn_oid, FmgrInfo::fn_strict, FunctionCallInvoke, InitFunctionCallInfoData, Int32GetDatum, InvalidOid, LOCAL_FCINFO, ObjectIdGetDatum, and PointerGetDatum.

Referenced by CopyReadBinaryAttribute(), domain_recv(), OidReceiveFunctionCall(), range_recv(), ReadArrayBinary(), and record_recv().

{
    LOCAL_FCINFO(fcinfo, 3);
    Datum       result;

    if (buf == NULL && flinfo->fn_strict)
        return (Datum) 0;       /* just return null result */

    InitFunctionCallInfoData(*fcinfo, flinfo, 3, InvalidOid, NULL, NULL);

    fcinfo->args[0].value = PointerGetDatum(buf);
    fcinfo->args[0].isnull = false;
    fcinfo->args[1].value = ObjectIdGetDatum(typioparam);
    fcinfo->args[1].isnull = false;
    fcinfo->args[2].value = Int32GetDatum(typmod);
    fcinfo->args[2].isnull = false;

    result = FunctionCallInvoke(fcinfo);

    /* Should get null result if and only if buf is NULL */
    if (buf == NULL)
    {
        if (!fcinfo->isnull)
            elog(ERROR, "receive function %u returned non-NULL",
                 flinfo->fn_oid);
    }
    else
    {
        if (fcinfo->isnull)
            elog(ERROR, "receive function %u returned NULL",
                 flinfo->fn_oid);
    }

    return result;
}

record_C_func()

static void record_C_func ( HeapTuple  procedureTuple, PGFunction  user_fn, const Pg_finfo_record *  inforec  )

static

Definition at line 556 of file fmgr.c.

References HASHCTL::entrysize, CFuncHashTabEntry::fn_tid, CFuncHashTabEntry::fn_xmin, GETSTRUCT, HASH_BLOBS, hash_create(), HASH_ELEM, HASH_ENTER, hash_search(), HeapTupleHeaderGetRawXmin, CFuncHashTabEntry::inforec, HASHCTL::keysize, MemSet, HeapTupleData::t_data, HeapTupleData::t_self, and CFuncHashTabEntry::user_fn.

Referenced by fmgr_info_C_lang().

{
    Oid         fn_oid = ((Form_pg_proc) GETSTRUCT(procedureTuple))->oid;
    CFuncHashTabEntry *entry;
    bool        found;

    /* Create the hash table if it doesn't exist yet */
    if (CFuncHash == NULL)
    {
        HASHCTL     hash_ctl;

        MemSet(&hash_ctl, 0, sizeof(hash_ctl));
        hash_ctl.keysize = sizeof(Oid);
        hash_ctl.entrysize = sizeof(CFuncHashTabEntry);
        CFuncHash = hash_create("CFuncHash",
                                100,
                                &hash_ctl,
                                HASH_ELEM | HASH_BLOBS);
    }

    entry = (CFuncHashTabEntry *)
        hash_search(CFuncHash,
                    &fn_oid,
                    HASH_ENTER,
                    &found);
    /* OID is already filled in */
    entry->fn_xmin = HeapTupleHeaderGetRawXmin(procedureTuple->t_data);
    entry->fn_tid = procedureTuple->t_self;
    entry->user_fn = user_fn;
    entry->inforec = inforec;
}

SendFunctionCall()

bytea* SendFunctionCall	(	FmgrInfo *	flinfo,
		Datum	val
	)

Definition at line 1638 of file fmgr.c.

References DatumGetByteaP, and FunctionCall1.

Referenced by array_send(), CopyOneRowTo(), OidSendFunctionCall(), printtup(), printtup_internal_20(), range_send(), and record_send().

{
    return DatumGetByteaP(FunctionCall1(flinfo, val));
}

set_fn_opclass_options()

void set_fn_opclass_options	(	FmgrInfo *	flinfo,
		bytea *	options
	)

Definition at line 1964 of file fmgr.c.

References FmgrInfo::fn_expr, InvalidOid, makeConst(), and PointerGetDatum.

Referenced by gincost_pattern(), and index_getprocinfo().

{
    flinfo->fn_expr = (Node *) makeConst(BYTEAOID, -1, InvalidOid, -1,
                                         PointerGetDatum(options),
                                         options == NULL, false);
}

Variable Documentation

CFuncHash

HTAB* CFuncHash = NULL

static

Definition at line 54 of file fmgr.c.

fmgr_hook

PGDLLIMPORT fmgr_hook_type fmgr_hook = NULL

Definition at line 39 of file fmgr.c.

Referenced by fmgr_security_definer(), and sepgsql_init_client_label().

needs_fmgr_hook

PGDLLIMPORT needs_fmgr_hook_type needs_fmgr_hook = NULL

Definition at line 38 of file fmgr.c.

Referenced by sepgsql_init_client_label().