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From: Ashutosh B. <ash...@us...> - 2012-10-11 08:52:18
|
Project "Postgres-XC".
The branch, master has been updated
via 66c17a5a348a4ed09859be3c45c64e9a99cc2d49 (commit)
from 7b633f16bf11ade60acef4520c614dc3dd5704b8 (commit)
- Log -----------------------------------------------------------------
http://postgres-xc.git.sourceforge.net/git/gitweb.cgi?p=postgres-xc/postgres-xc;a=commitdiff;h=66c17a5a348a4ed09859be3c45c64e9a99cc2d49
commit 66c17a5a348a4ed09859be3c45c64e9a99cc2d49
Author: Ashutosh Bapat <ash...@en...>
Date: Thu Oct 11 14:18:14 2012 +0530
The commit has following changes.
1. If each group according to GROUP BY clause resides completely on a single
datanode i.e. GROUP BY has distribution column in it for distributed underlying
relation or the underlying relation is a replicated relation, finalise the
aggregates on the datanodes. There is no need for a covering Group or Agg node in
the standard planner.
2. All the optimizations related to GROUP BY and aggregation are now available
even if the query has ORDER BY or DISTINCT clauses in it. (Earlier they were
not.)
Implementation details
---------------------------------
We push aggregates to the datanodes to get transition results for each group and
then apply combination and finalization phase at the coordinator. This is done
by substituting Aggref nodes in RemoteQuery targetlist (representing results of
the datanodes aggregation) as arguments to the Aggref nodes in Agg plans and
letting set_plan_refs take care of Var substitution. But since this changed the
Aggref nodes on Agg plan it was not possible for the nodes above Agg node to
find matching Aggref nodes and thus set the plan references correctly. That's
why we were not able to use these optimizations in the presence of ORDER BY or
DISTINCT clauses which require nodes to be added on top of Agg node (if any).
Hence, moved this logic of substitution to set_plan_refs() and is applied only
for Agg node.
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 | 563 +++++++-------
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 | 1 +
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, 1219 insertions(+), 1287 deletions(-)
hooks/post-receive
--
Postgres-XC
|
|
From: Ashutosh B. <ash...@us...> - 2012-10-11 07:07:11
|
Project "Postgres-XC".
The branch, master has been updated
via 7b633f16bf11ade60acef4520c614dc3dd5704b8 (commit)
from 5ccf23fc829af560f4ddb325e0a6f5eacfdfd10c (commit)
- Log -----------------------------------------------------------------
http://postgres-xc.git.sourceforge.net/git/gitweb.cgi?p=postgres-xc/postgres-xc;a=commitdiff;h=7b633f16bf11ade60acef4520c614dc3dd5704b8
commit 7b633f16bf11ade60acef4520c614dc3dd5704b8
Author: Ashutosh Bapat <ash...@en...>
Date: Thu Oct 11 12:28:02 2012 +0530
Move Postgres-XC specific planner code to appropriate PostgreSQL directories.
M src/backend/catalog/pg_proc.c
M src/backend/commands/schemacmds.c
M src/backend/nodes/copyfuncs.c
M src/backend/nodes/outfuncs.c
M src/backend/optimizer/path/pgxcpath.c
M src/backend/optimizer/plan/pgxcplan.c
M src/backend/optimizer/plan/planner.c
M src/backend/optimizer/plan/setrefs.c
M src/backend/parser/analyze.c
M src/backend/parser/parse_utilcmd.c
M src/backend/pgxc/Makefile
D src/backend/pgxc/plan/Makefile
D src/backend/pgxc/plan/planner.c
M src/backend/tcop/postgres.c
M src/backend/tcop/pquery.c
M src/backend/tcop/utility.c
M src/backend/utils/adt/ruleutils.c
M src/backend/utils/misc/guc.c
R091 src/include/pgxc/planner.h src/include/optimizer/pgxcplan.h
M src/include/pgxc/execRemote.h
-----------------------------------------------------------------------
Summary of changes:
src/backend/catalog/pg_proc.c | 1 -
src/backend/commands/schemacmds.c | 2 +-
src/backend/nodes/copyfuncs.c | 2 +-
src/backend/nodes/outfuncs.c | 2 +-
src/backend/optimizer/path/pgxcpath.c | 2 +-
src/backend/optimizer/plan/pgxcplan.c | 818 ++++++++++++++++++-
src/backend/optimizer/plan/planner.c | 2 +-
src/backend/optimizer/plan/setrefs.c | 2 +-
src/backend/parser/analyze.c | 2 +-
src/backend/parser/parse_utilcmd.c | 2 +-
src/backend/pgxc/Makefile | 2 +-
src/backend/pgxc/plan/Makefile | 19 -
src/backend/pgxc/plan/planner.c | 884 --------------------
src/backend/tcop/postgres.c | 2 +-
src/backend/tcop/pquery.c | 2 +-
src/backend/tcop/utility.c | 2 +-
src/backend/utils/adt/ruleutils.c | 2 +-
src/backend/utils/misc/guc.c | 2 +-
.../{pgxc/planner.h => optimizer/pgxcplan.h} | 13 +-
src/include/pgxc/execRemote.h | 2 +-
20 files changed, 833 insertions(+), 932 deletions(-)
delete mode 100644 src/backend/pgxc/plan/Makefile
delete mode 100644 src/backend/pgxc/plan/planner.c
rename src/include/{pgxc/planner.h => optimizer/pgxcplan.h} (91%)
hooks/post-receive
--
Postgres-XC
|
