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Commitb1baf1f

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Add get_func_rettype() to general-use lsyscache routines,
since it's now needed in both optimizer and parser.
1 parentbab13a7 commitb1baf1f

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2 files changed

+29
-2
lines changed

2 files changed

+29
-2
lines changed

‎src/backend/utils/cache/lsyscache.c‎

Lines changed: 27 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -6,7 +6,7 @@
66
* Copyright (c) 1994, Regents of the University of California
77
*
88
* IDENTIFICATION
9-
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.32 1999/08/09 03:13:30 tgl Exp $
9+
* $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.33 1999/08/16 02:06:25 tgl Exp $
1010
*
1111
* NOTES
1212
* Eventually, the index information should go through here, too.
@@ -15,6 +15,7 @@
1515
#include"postgres.h"
1616

1717
#include"catalog/pg_operator.h"
18+
#include"catalog/pg_proc.h"
1819
#include"catalog/pg_type.h"
1920
#include"utils/lsyscache.h"
2021
#include"utils/syscache.h"
@@ -453,6 +454,31 @@ get_oprjoin(Oid opno)
453454
return (RegProcedure)NULL;
454455
}
455456

457+
/*---------- FUNCTION CACHE ---------- */
458+
459+
/*
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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(Oidfuncid)
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{
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HeapTuplefunc_tuple;
467+
Oidfuncrettype;
468+
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func_tuple=SearchSysCacheTuple(PROOID,
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ObjectIdGetDatum(funcid),
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0,0,0);
472+
473+
if (!HeapTupleIsValid(func_tuple))
474+
elog(ERROR,"Function OID %u does not exist",funcid);
475+
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funcrettype= (Oid)
477+
((Form_pg_proc)GETSTRUCT(func_tuple))->prorettype;
478+
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returnfuncrettype;
480+
}
481+
456482
/*---------- RELATION CACHE ---------- */
457483

458484
/*

‎src/include/utils/lsyscache.h‎

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -5,7 +5,7 @@
55
*
66
* Copyright (c) 1994, Regents of the University of California
77
*
8-
* $Id: lsyscache.h,v 1.19 1999/08/09 03:13:28 tgl Exp $
8+
* $Id: lsyscache.h,v 1.20 1999/08/16 02:06:23 tgl Exp $
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*
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*-------------------------------------------------------------------------
1111
*/
@@ -32,6 +32,7 @@ extern HeapTuple get_operator_tuple(Oid opno);
3232
externOidget_negator(Oidopid);
3333
externRegProcedureget_oprrest(Oidopid);
3434
externRegProcedureget_oprjoin(Oidopid);
35+
externOidget_func_rettype(Oidfuncid);
3536
externintget_relnatts(Oidrelid);
3637
externchar*get_rel_name(Oidrelid);
3738
externstructvarlena*get_relstub(Oidrelid,intno,bool*islast);

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