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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-04-21 15:20:02 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-04-21 15:20:02 +0000 |
| commit | a72fd0d60ea527a225972c481c7dd02f75dac653 (patch) | |
| tree | a2c6e6307b1ee32e4d2357fa7fd22e269717f80f | |
| parent | 9ccfbe254a32fb95ca99e2facb95053a0d9c8db8 (diff) | |
| download | postgresql-a72fd0d60ea527a225972c481c7dd02f75dac653.tar.gz postgresql-a72fd0d60ea527a225972c481c7dd02f75dac653.zip | |
Prevent palloc(0) error when parent table has zero columns.
| -rw-r--r-- | src/backend/commands/tablecmds.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c index 46d9b709398..2823355faf0 100644 --- a/src/backend/commands/tablecmds.c +++ b/src/backend/commands/tablecmds.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/commands/tablecmds.c,v 1.51.2.1 2002/12/16 18:39:56 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/commands/tablecmds.c,v 1.51.2.2 2003/04/21 15:20:02 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -576,9 +576,10 @@ MergeAttributes(List *schema, List *supers, bool istemp, * newattno[] will contain the child-table attribute numbers for * the attributes of this parent table. (They are not the same * for parents after the first one, nor if we have dropped - * columns.) + * columns.) +1 is to prevent error if parent has zero columns. */ - newattno = (AttrNumber *) palloc(tupleDesc->natts * sizeof(AttrNumber)); + newattno = (AttrNumber *) + palloc((tupleDesc->natts + 1) * sizeof(AttrNumber)); for (parent_attno = 1; parent_attno <= tupleDesc->natts; parent_attno++) |