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From: Michael P. <mic...@us...> - 2012-10-16 08:40:35
|
Project "Postgres-XC". The branch, master has been updated via 9ce38d3bf64c17155a0ca283c56987b7ecd9e218 (commit) from 945f83fc5d5b2ef1d51438a7dd48dd9532c9d936 (commit) - Log ----------------------------------------------------------------- http://postgres-xc.git.sourceforge.net/git/gitweb.cgi?p=postgres-xc/postgres-xc;a=commitdiff;h=9ce38d3bf64c17155a0ca283c56987b7ecd9e218 commit 9ce38d3bf64c17155a0ca283c56987b7ecd9e218 Author: Michael Paquier <mi...@ot...> Date: Tue Oct 16 17:21:57 2012 +0900 GROUP BY clause pushdown optimization with distribution data and aggregates This patch is a lightly modified version of 66c17a5 reverted by 6c6ba3c once some errors have been noticed regarding aggregate pushdown, like: SELECT count(*) FROM tab; where the query was completely pushed down and returned multiple row results to client (1 per Datanode). Patch and subsequent fix from Ashutosh Bapat, I just did some testing. M src/backend/nodes/copyfuncs.c M src/backend/nodes/outfuncs.c M src/backend/optimizer/plan/pgxcplan.c M src/backend/optimizer/plan/setrefs.c M src/backend/optimizer/util/pgxcship.c M src/include/optimizer/pgxcplan.h M src/include/optimizer/pgxcship.h M src/test/regress/expected/aggregates.out M src/test/regress/expected/aggregates_1.out M src/test/regress/expected/xc_FQS.out M src/test/regress/expected/xc_groupby.out M src/test/regress/expected/xc_having.out M src/test/regress/sql/xc_FQS.sql M src/test/regress/sql/xc_groupby.sql M src/test/regress/sql/xc_having.sql ----------------------------------------------------------------------- Summary of changes: src/backend/nodes/copyfuncs.c | 1 - src/backend/nodes/outfuncs.c | 1 - src/backend/optimizer/plan/pgxcplan.c | 570 +++++++------- src/backend/optimizer/plan/setrefs.c | 98 +++ src/backend/optimizer/util/pgxcship.c | 26 +- src/include/optimizer/pgxcplan.h | 1 - src/include/optimizer/pgxcship.h | 2 + src/test/regress/expected/aggregates.out | 38 +- src/test/regress/expected/aggregates_1.out | 36 +- src/test/regress/expected/xc_FQS.out | 12 +- src/test/regress/expected/xc_groupby.out | 1154 ++++++++++++---------------- src/test/regress/expected/xc_having.out | 274 +++---- src/test/regress/sql/xc_FQS.sql | 2 +- src/test/regress/sql/xc_groupby.sql | 275 ++++---- src/test/regress/sql/xc_having.sql | 24 +- 15 files changed, 1227 insertions(+), 1287 deletions(-) hooks/post-receive -- Postgres-XC |