database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-26 01:22:12 +03:00
Code Activity

Fix overly enthusiastic Assert introduced in 8.1: it's expecting a

Browse Source 
CaseTestExpr, but forgot that the optimizer is sometimes able to replace
CaseTestExpr by Const.
This commit is contained in:
Tom Lane
2006-10-01 17:23:51 +00:00
parent e73687f2ec
commit 9acbb81dd7
1 changed files with 7 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/backend/utils/adt/ruleutils.c
View File

@ -3,7 +3,7 @@
* back to source text
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.207.2.5 2006/01/26 17:08:26 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/ruleutils.c,v 1.207.2.6 2006/10/01 17:23:51 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@ -3458,14 +3458,18 @@ get_rule_expr(Node *node, deparse_context *context,
* the optimizer's simplify_boolean_equality() may
* have reduced this to just "CaseTestExpr" or
* "NOT CaseTestExpr", for which we have to show
* "TRUE" or "FALSE".
* "TRUE" or "FALSE". Also, depending on context
* the original CaseTestExpr might have been reduced
* to a Const (but we won't see "WHEN Const").
*/
if (IsA(w, OpExpr))
{
Node *rhs;
Assert(IsA(linitial(((OpExpr *) w)->args),
CaseTestExpr));
CaseTestExpr) ||
IsA(linitial(((OpExpr *) w)->args),
Const));
rhs = (Node *) lsecond(((OpExpr *) w)->args);
get_rule_expr(rhs, context, false);
}