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Check for null pointer returned from get_opname(). 

Don't bother checking for alternate strategies if so
 since it was more likely a function or some other non-operator anyway.
This commit is contained in:
Thomas G. Lockhart 1998-08-16 05:37:04 +00:00
parent 0f19904360
commit 4c91723d35
1 changed files with 9 additions and 3 deletions
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12
src/backend/optimizer/path/indxpath.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.29 1998/08/14 16:13:07 thomas Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.30 1998/08/16 05:37:04 thomas Exp $
*
*-------------------------------------------------------------------------
*/
@ -642,7 +642,10 @@ match_clause_to_indexkey(RelOptInfo *rel,
Operator newop;
opname = get_opname(restrict_op);
newop = oper(opname, ltype, ltype, TRUE);
if (opname != NULL)
newop = oper(opname, ltype, ltype, TRUE);
else
newop = NULL;
/* actually have a different operator to try? */
if (HeapTupleIsValid(newop) && (oprid(newop) != restrict_op))
@ -698,7 +701,10 @@ match_clause_to_indexkey(RelOptInfo *rel,
restrict_op = ((Oper *) ((Expr *) clause)->oper)->opno;
opname = get_opname(restrict_op);
newop = oper(opname, rtype, rtype, TRUE);
if (opname != NULL)
newop = oper(opname, rtype, rtype, TRUE);
else
newop = NULL;
if (HeapTupleIsValid(newop) && (oprid(newop) != restrict_op))
{