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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2019-06-12 19:42:38 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2019-06-12 19:43:08 -0400 |
| commit | 3d99a81397abb8bb7b95aee794d6644e174e174f (patch) | |
| tree | 269d62f47e90bf609c3b22590b1b155f78e79bfc /contrib/postgres_fdw/postgres_fdw.c | |
| parent | ddc053dc503a773267a4d035418e0c81ce3b4851 (diff) | |
| download | postgresql-3d99a81397abb8bb7b95aee794d6644e174e174f.tar.gz postgresql-3d99a81397abb8bb7b95aee794d6644e174e174f.zip | |
Fix incorrect printing of queries with duplicated join names.
Given a query in which multiple JOIN nodes used the same alias
(which'd necessarily be in different sub-SELECTs), ruleutils.c
would assign the JOIN nodes distinct aliases for clarity ...
but then it forgot to print the modified aliases when dumping
the JOIN nodes themselves. This results in a dump/reload hazard
for views, because the emitted query is flat-out incorrect:
Vars will be printed with table names that have no referent.
This has been wrong for a long time, so back-patch to all supported
branches.
Philip Dubé
Discussion: https://postgr.es/m/CY4PR2101MB080246F2955FF58A6ED1FEAC98140@CY4PR2101MB0802.namprd21.prod.outlook.com
Diffstat (limited to 'contrib/postgres_fdw/postgres_fdw.c')
0 files changed, 0 insertions, 0 deletions