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Project "Postgres-XC".

The branch, master has been updated
       via  0b8135db11723d586033bf45de94705003ef2bf6 (commit)
      from  5e13a79645239f25615dfc9ee1d177f44e0bbc09 (commit)


- Log -----------------------------------------------------------------
http://postgres-xc.git.sourceforge.net/git/gitweb.cgi?p=postgres-xc/postgres-xc;a=commit;h=0b8135db11723d586033bf45de94705003ef2bf6

commit 0b8135db11723d586033bf45de94705003ef2bf6
Author: Ashutosh Bapat <ash...@en...>
Date:   Mon Jul 18 17:42:25 2011 +0530

    If the havingQuals in query contain aggregates, the aggregates and the VARs not
    included in the expression trees rooted in those aggregates are included in the
    targetlist to be pushed to the data node. The aggregates are finalised at the
    coordinator and havingQual is evaluated.
    The same technique is used to push aggregates and VARs involved in the
    expressions in the targetlist to the data nodes.
    With this patch, we apply the grouping optimizations to the queries containing
    having clause.

M	src/backend/optimizer/plan/createplan.c
M	src/backend/pgxc/plan/planner.c
M	src/backend/pgxc/pool/postgresql_fdw.c
M	src/include/pgxc/postgresql_fdw.h
M	src/test/regress/expected/xc_groupby.out
M	src/test/regress/expected/xc_having.out

-----------------------------------------------------------------------

Summary of changes:
 src/backend/optimizer/plan/createplan.c  |  393 +++++++++++++++++------
 src/backend/pgxc/plan/planner.c          |    2 +-
 src/backend/pgxc/pool/postgresql_fdw.c   |   83 +++++-
 src/include/pgxc/postgresql_fdw.h        |   10 +-
 src/test/regress/expected/xc_groupby.out |  140 ++++-----
 src/test/regress/expected/xc_having.out  |  514 +++++++++++++-----------------
 6 files changed, 657 insertions(+), 485 deletions(-)


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