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postgresql/src/test/regress
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Andrew Gierth da53be23d1 Repair logic for reordering grouping sets optimization. 
The logic in reorder_grouping_sets to order grouping set elements to
match a pre-specified sort ordering was defective, resulting in
unnecessary sort nodes (though the query output would still be
correct). Repair, simplifying the code a little, and add a test.

Per report from Richard Guo, though I didn't use their patch. Original
bug seems to have been my fault.

Backpatch back to 9.5 where grouping sets were introduced.

Discussion: https://postgr.es/m/CAN_9JTzyjGcUjiBHxLsgqfk7PkdLGXiM=pwM+=ph2LsWw0WO1A@mail.gmail.com
2019-06-30 23:49:13 +01:00
..
data Improve key representation for GIN jsonb_ops, and fix existence-search bug. 2014-05-09 08:41:26 -04:00
expected Repair logic for reordering grouping sets optimization. 2019-06-30 23:49:13 +01:00
input Fix handling of COMMENT for domain constraints 2019-06-12 11:30:11 +09:00
output Fix handling of COMMENT for domain constraints 2019-06-12 11:30:11 +09:00
sql Repair logic for reordering grouping sets optimization. 2019-06-30 23:49:13 +01:00
.gitignore Update .gitignore for config.cache. 2014-12-18 19:56:42 +09:00
GNUmakefile Move logging.h and logging.c from src/fe_utils/ to src/common/. 2019-05-14 14:20:10 -04:00
Makefile Fix non-GNU makefiles for AIX make. 2017-11-30 00:57:22 -08:00
parallel_schedule Move rolenames test out of the core regression tests. 2019-06-30 12:51:12 -04:00
pg_regress_main.c tableam: introduce table AM infrastructure. 2019-03-06 09:54:38 -08:00
pg_regress.c Blind attempt to fix SSPI-auth case in 010_dump_connstr.pl. 2019-06-30 13:34:45 -04:00
pg_regress.h Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
README Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00
regress.c Initial pgindent run for v12. 2019-05-22 12:55:34 -04:00
regressplans.sh Rename 'gmake' to 'make' in docs and recommended commands 2014-02-12 17:29:19 -05:00
resultmap Cygwin and Mingw floating-point fixes. 2019-02-16 01:50:16 +00:00
serial_schedule Move rolenames test out of the core regression tests. 2019-06-30 12:51:12 -04:00
standby_schedule

README 

Documentation concerning how to run these regression tests and interpret
the results can be found in the PostgreSQL manual, in the chapter
"Regression Tests".