diff options
Diffstat (limited to 'src/backend/parser/parse_relation.c')
| -rw-r--r-- | src/backend/parser/parse_relation.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/backend/parser/parse_relation.c b/src/backend/parser/parse_relation.c index 180ba985129..bc5c54d2801 100644 --- a/src/backend/parser/parse_relation.c +++ b/src/backend/parser/parse_relation.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.90.2.2 2005/05/29 17:10:52 tgl Exp $ + * $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.90.2.3 2008/04/05 01:59:01 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1072,6 +1072,16 @@ addRangeTableEntryForJoin(ParseState *pstate, Alias *eref; int numaliases; + /* + * Fail if join has too many columns --- we must be able to reference + * any of the columns with an AttrNumber. + */ + if (length(aliasvars) > MaxAttrNumber) + ereport(ERROR, + (errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED), + errmsg("joins can have at most %d columns", + MaxAttrNumber))); + rte->rtekind = RTE_JOIN; rte->relid = InvalidOid; rte->subquery = NULL; |