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Last-minute fix for 6.5.2: repair optimizer coredump on

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CASE clauses in WHERE.  Surprised no one noticed this before.
This commit is contained in:
Tom Lane 1999-09-14 20:26:02 +00:00
parent 453e30e523
commit 05a275926b
1 changed files with 6 additions and 5 deletions
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11
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 1.57 1999/06/19 04:54:14 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/optimizer/path/indxpath.c,v 1.57.2.1 1999/09/14 20:26:02 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -585,12 +585,13 @@ match_clause_to_indexkey(RelOptInfo *rel,
Oid restrict_op = InvalidOid;
bool isIndexable = false;
if (or_clause((Node *) clause) ||
not_clause((Node *) clause) || single_node((Node *) clause))
return (RestrictInfo *) NULL;
/* Clause must be a binary opclause. */
if (! is_opclause((Node *) clause))
return NULL;
leftop = get_leftop(clause);
rightop = get_rightop(clause);
if (! leftop || ! rightop)
return NULL;
/*
* If this is not a join clause, check for clauses of the form: