database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-09 22:41:56 +03:00
Code Activity

SQL functions can have arguments and results declared ANYARRAY or

Browse Source 
ANYELEMENT.  The effect is to postpone typechecking of the function
body until runtime.  Documentation is still lacking.

Original patch by Joe Conway, modified to postpone type checking
by Tom Lane.
This commit is contained in:
Tom Lane
2003-07-01 00:04:39 +00:00
parent 71e9f3b07f
commit d6d07a0eea
8 changed files with 152 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
src/backend/optimizer/util/clauses.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.142 2003/06/29 00:33:43 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/util/clauses.c,v 1.143 2003/07/01 00:04:37 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@ -1731,6 +1731,7 @@ inline_function(Oid funcid, Oid result_type, List *args,
int *usecounts;
List *arg;
int i;
int j;
/*
* Forget it if the function is not SQL-language or has other
@ -1742,12 +1743,20 @@ inline_function(Oid funcid, Oid result_type, List *args,
funcform->pronargs != length(args))
return NULL;
/* Forget it if declared return type is tuple or void */
/* Forget it if declared return type is not base or domain */
result_typtype = get_typtype(funcform->prorettype);
if (result_typtype != 'b' &&
result_typtype != 'd')
return NULL;
/* Forget it if any declared argument type is polymorphic */
for (j = 0; j < funcform->pronargs; j++)
{
if (funcform->proargtypes[j] == ANYARRAYOID ||
funcform->proargtypes[j] == ANYELEMENTOID)
return NULL;
}
/* Check for recursive function, and give up trying to expand if so */
if (oidMember(funcid, active_fns))
return NULL;