granicus.if.org Git - postgresql/blob - src/include/executor/functions.h

   1 /*-------------------------------------------------------------------------
   2  *
   3  * functions.h
   4  *              Declarations for execution of SQL-language functions.
   5  *
   6  *
   7  * Portions Copyright (c) 1996-2011, PostgreSQL Global Development Group
   8  * Portions Copyright (c) 1994, Regents of the University of California
   9  *
  10  * src/include/executor/functions.h
  11  *
  12  *-------------------------------------------------------------------------
  13  */
  14 #ifndef FUNCTIONS_H
  15 #define FUNCTIONS_H
  16
  17 #include "nodes/execnodes.h"
  18 #include "tcop/dest.h"
  19
  20 /* This struct is known only within executor/functions.c */
  21 typedef struct SQLFunctionParseInfo *SQLFunctionParseInfoPtr;
  22
  23 extern Datum fmgr_sql(PG_FUNCTION_ARGS);
  24
  25 extern SQLFunctionParseInfoPtr prepare_sql_fn_parse_info(HeapTuple procedureTuple,
  26                                                   Node *call_expr,
  27                                                   Oid inputCollation);
  28
  29 extern void sql_fn_parser_setup(struct ParseState *pstate,
  30                                                                 SQLFunctionParseInfoPtr pinfo);
  31
  32 extern bool check_sql_fn_retval(Oid func_id, Oid rettype,
  33                                         List *queryTreeList,
  34                                         bool *modifyTargetList,
  35                                         JunkFilter **junkFilter);
  36
  37 extern DestReceiver *CreateSQLFunctionDestReceiver(void);
  38
  39 #endif   /* FUNCTIONS_H */