Fix mistaken Assert in adjust_appendrel_attr_needed, per Greg Stark.

diff --git a/src/backend/optimizer/prep/prepunion.c b/src/backend/optimizer/prep/prepunion.c
index 5e80dc1559a581aba8e7da0c28558c923a16e7db..2dc293b74d126622a6260b98597b37a2858e4b9e 100644 (file)
--- a/src/backend/optimizer/prep/prepunion.c
+++ b/src/backend/optimizer/prep/prepunion.c
@@ -22,7 +22,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/optimizer/prep/prepunion.c,v 1.142 2007/06/11 01:16:23 tgl Exp $
+ *   $PostgreSQL: pgsql/src/backend/optimizer/prep/prepunion.c,v 1.143 2007/07/12 18:27:01 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1288,8 +1288,6 @@ adjust_appendrel_attr_needed(RelOptInfo *oldrel, AppendRelInfo *appinfo,
    ListCell   *lm;
 
    /* Create empty result array */
-   Assert(new_min_attr <= oldrel->min_attr);
-   Assert(new_max_attr >= oldrel->max_attr);
    new_attr_needed = (Relids *)
        palloc0((new_max_attr - new_min_attr + 1) * sizeof(Relids));
    /* Process user attributes, with appropriate attno mapping */
@@ -1312,6 +1310,7 @@ adjust_appendrel_attr_needed(RelOptInfo *oldrel, AppendRelInfo *appinfo,
        parent_attr++;
    }
    /* Process system attributes, including whole-row references */
+   Assert(new_min_attr <= oldrel->min_attr);
    for (parent_attr = oldrel->min_attr; parent_attr <= 0; parent_attr++)
    {
        Relids      attrneeded;