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Add get_func_rettype() to general-use lsyscache routines,
since it's now needed in both optimizer and parser.
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src/backend/utils/cache/lsyscache.c
vendored
28
src/backend/utils/cache/lsyscache.c
vendored
@ -6,7 +6,7 @@
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* Copyright (c) 1994, Regents of the University of California
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*
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* IDENTIFICATION
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* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.32 1999/08/09 03:13:30 tgl Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.33 1999/08/16 02:06:25 tgl Exp $
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*
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* NOTES
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* Eventually, the index information should go through here, too.
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@ -15,6 +15,7 @@
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#include "postgres.h"
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#include "catalog/pg_operator.h"
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#include "catalog/pg_proc.h"
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#include "catalog/pg_type.h"
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#include "utils/lsyscache.h"
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#include "utils/syscache.h"
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@ -453,6 +454,31 @@ get_oprjoin(Oid opno)
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return (RegProcedure) NULL;
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}
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/* ---------- FUNCTION CACHE ---------- */
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/*
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* get_func_rettype
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* Given procedure id, return the function's result type.
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*/
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Oid
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get_func_rettype(Oid funcid)
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{
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HeapTuple func_tuple;
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Oid funcrettype;
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func_tuple = SearchSysCacheTuple(PROOID,
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ObjectIdGetDatum(funcid),
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0, 0, 0);
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if (!HeapTupleIsValid(func_tuple))
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elog(ERROR, "Function OID %u does not exist", funcid);
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funcrettype = (Oid)
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((Form_pg_proc) GETSTRUCT(func_tuple))->prorettype;
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return funcrettype;
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}
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/* ---------- RELATION CACHE ---------- */
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/*
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@ -5,7 +5,7 @@
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*
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* Copyright (c) 1994, Regents of the University of California
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*
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* $Id: lsyscache.h,v 1.19 1999/08/09 03:13:28 tgl Exp $
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* $Id: lsyscache.h,v 1.20 1999/08/16 02:06:23 tgl Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -32,6 +32,7 @@ extern HeapTuple get_operator_tuple(Oid opno);
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extern Oid get_negator(Oid opid);
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extern RegProcedure get_oprrest(Oid opid);
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extern RegProcedure get_oprjoin(Oid opid);
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extern Oid get_func_rettype(Oid funcid);
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extern int get_relnatts(Oid relid);
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extern char *get_rel_name(Oid relid);
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extern struct varlena *get_relstub(Oid relid, int no, bool *islast);
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