mirror of
https://github.com/postgres/postgres.git
synced 2026-05-30 04:24:45 -04:00
Peter Eisentraut
33803f67f1
In a top-level CALL, the values of INOUT arguments will be returned as a result row. In PL/pgSQL, the values are assigned back to the input arguments. In other languages, the same convention as for return a record from a function is used. That does not require any code changes in the PL implementations. Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/*-------------------------------------------------------------------------
|
|
*
|
|
* functions.h
|
|
* Declarations for execution of SQL-language functions.
|
|
*
|
|
*
|
|
* Portions Copyright (c) 1996-2018, PostgreSQL Global Development Group
|
|
* Portions Copyright (c) 1994, Regents of the University of California
|
|
*
|
|
* src/include/executor/functions.h
|
|
*
|
|
*-------------------------------------------------------------------------
|
|
*/
|
|
#ifndef FUNCTIONS_H
|
|
#define FUNCTIONS_H
|
|
|
|
#include "nodes/execnodes.h"
|
|
#include "tcop/dest.h"
|
|
|
|
/* This struct is known only within executor/functions.c */
|
|
typedef struct SQLFunctionParseInfo *SQLFunctionParseInfoPtr;
|
|
|
|
extern Datum fmgr_sql(PG_FUNCTION_ARGS);
|
|
|
|
extern SQLFunctionParseInfoPtr prepare_sql_fn_parse_info(HeapTuple procedureTuple,
|
|
Node *call_expr,
|
|
Oid inputCollation);
|
|
|
|
extern void sql_fn_parser_setup(struct ParseState *pstate,
|
|
SQLFunctionParseInfoPtr pinfo);
|
|
|
|
extern void check_sql_fn_statements(List *queryTreeList);
|
|
|
|
extern bool check_sql_fn_retval(Oid func_id, Oid rettype,
|
|
List *queryTreeList,
|
|
bool *modifyTargetList,
|
|
JunkFilter **junkFilter);
|
|
|
|
extern DestReceiver *CreateSQLFunctionDestReceiver(void);
|
|
|
|
#endif /* FUNCTIONS_H */
|