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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2012-04-09 11:58:24 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2012-04-09 11:59:11 -0400 |
| commit | 8555586707dbf5f731f015691a87cc0ab53efcca (patch) | |
| tree | cc7a0814f9aba13d9b18feaae53d11208ebb0120 /src/backend/nodes/copyfuncs.c | |
| parent | cd8b1c6d48d664fe2e5575f40707ed247cee4aa0 (diff) | |
Fix an Assert that turns out to be reachable after all.
estimate_num_groups() gets unhappy with
create table empty();
select * from empty except select * from empty e2;
I can't see any actual use-case for such a query (and the table is illegal
per SQL spec), but it seems like a good idea that it not cause an assert
failure.
Diffstat (limited to 'src/backend/nodes/copyfuncs.c')
0 files changed, 0 insertions, 0 deletions