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Diffstat (limited to 'src/backend/optimizer/path/allpaths.c')
| -rw-r--r-- | src/backend/optimizer/path/allpaths.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/backend/optimizer/path/allpaths.c b/src/backend/optimizer/path/allpaths.c index cc6a1cdf402..1f979dd4094 100644 --- a/src/backend/optimizer/path/allpaths.c +++ b/src/backend/optimizer/path/allpaths.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/optimizer/path/allpaths.c,v 1.109 2003/11/29 19:51:50 pgsql Exp $ + * $PostgreSQL: pgsql/src/backend/optimizer/path/allpaths.c,v 1.110 2003/12/17 17:07:48 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -545,6 +545,8 @@ make_one_rel_by_joins(Query *root, int levels_needed, List *initial_rels) /* * We should have a single rel at the final level. */ + if (joinitems[levels_needed] == NIL) + elog(ERROR, "failed to build any %d-way joins", levels_needed); Assert(length(joinitems[levels_needed]) == 1); rel = (RelOptInfo *) lfirst(joinitems[levels_needed]); |