Fix creative, but unportable, spelling of "ptr != NULL".

Or at least I suppose that's what was really meant here.  But even
aside from the not-per-project-style use of "0" to mean "NULL",
I doubt it's safe to assume that all valid pointers are > NULL.
Per buildfarm member pademelon.

diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index c77b216d4f775ecaed21db596af1d7db6436e5e8..5856e729180907b873c5a1770d42be27f21232df 100644 (file)
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -13167,7 +13167,7 @@ ATExecAttachPartition(List **wqueue, Relation rel, PartitionCmd *cmd)
    tupleDesc = RelationGetDescr(attachRel);
    attachRel_constr = tupleDesc->constr;
    existConstraint = NIL;
-   if (attachRel_constr > 0)
+   if (attachRel_constr != NULL)
    {
        int         num_check = attachRel_constr->num_check;
        int         i;