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author | Tom Lane <tgl@sss.pgh.pa.us> | 2019-06-12 19:42:39 -0400 |
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committer | Tom Lane <tgl@sss.pgh.pa.us> | 2019-06-12 19:42:39 -0400 |
commit | bf612fd3a4d8ff4953f400deccc3c8d1e411e935 (patch) | |
tree | 43a20aade2a763b72e4ffb17318fa3537136b056 /contrib/postgres_fdw/postgres_fdw.c | |
parent | f7e99de95654b124330b06e0c406d56db5922794 (diff) | |
download | postgresql-bf612fd3a4d8ff4953f400deccc3c8d1e411e935.tar.gz postgresql-bf612fd3a4d8ff4953f400deccc3c8d1e411e935.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