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aca127c105
postgresql/src/backend
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Thomas Munro aca127c105 Prevent Parallel Hash Join for JOIN_UNIQUE_INNER. 
WHERE EXISTS (...) queries cannot be executed by Parallel Hash Join
with jointype JOIN_UNIQUE_INNER, because there is no way to make a
partial plan totally unique.  The consequence of allowing such plans
was duplicate results from some EXISTS queries.

Back-patch to 11.  Bug #15857.

Author: Thomas Munro
Reviewed-by: Tom Lane
Reported-by: Vladimir Kriukov
Discussion: https://postgr.es/m/15857-d1ba2a64bce0795e%40postgresql.org
2019-06-19 01:25:57 +12:00
..
access Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
bootstrap In bootstrap mode, use default signal handling for SIGINT etc. 2019-05-14 10:22:28 -04:00
catalog Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
commands Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
executor Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
foreign Update copyright for 2019 2019-01-02 12:44:25 -05:00
jit Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
lib Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
libpq Fix buffer overflow when parsing SCRAM verifiers in backend 2019-06-17 21:48:17 +09:00
main Replace @postgresql.org with @lists.postgresql.org for mailinglists 2019-01-19 19:06:35 +01:00
nodes Reconcile nodes/*funcs.c with PostgreSQL 12 work. 2019-06-09 14:00:36 -07:00
optimizer Prevent Parallel Hash Join for JOIN_UNIQUE_INNER. 2019-06-19 01:25:57 +12:00
parser Fix typos and inconsistencies in code comments 2019-06-14 09:34:34 +09:00
partitioning Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
po Translation updates 2019-06-17 15:30:20 +02:00
port Update stale comments, and fix comment typos. 2019-06-08 10:12:26 -07:00
postmaster Fix typos and inconsistencies in code comments 2019-06-14 09:34:34 +09:00
regex Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
replication Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
rewrite Fix typos in various places 2019-06-03 13:44:03 +09:00
snowball Update copyright for 2019 2019-01-02 12:44:25 -05:00
statistics Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
storage Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
tcop Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
tsearch Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
utils Fix more typos and inconsistencies in the tree 2019-06-17 16:13:16 +09:00
.gitignore Add .gitignore entries for AIX-specific intermediate build artifacts. 2015-07-08 20:44:22 -04:00
common.mk Remove PARTIAL_LINKING build mode. 2018-03-30 17:33:04 -07:00
Makefile Get rid of jsonpath_gram.h and jsonpath_scanner.h 2019-03-20 11:13:34 +03:00
nls.mk Translation updates 2019-05-20 16:00:53 +02:00