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Project "Postgres-XC".

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       via  f83286588cca9702ed24cc20513f420d99c480e4 (commit)
      from  d3cd58c5f3ac1aee62ecc250efa0425370199adf (commit)


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http://postgres-xc.git.sourceforge.net/git/gitweb.cgi?p=postgres-xc/postgres-xc;a=commitdiff;h=f83286588cca9702ed24cc20513f420d99c480e4

commit f83286588cca9702ed24cc20513f420d99c480e4
Author: Ashutosh Bapat <ash...@en...>
Date:   Fri Aug 19 12:09:04 2011 +0530

    Support for parameterised queries in XC. It has following changes.
    1. The parameter values are stored in RemoteQueryState rather than RemoteQuery
    node, since they are execution time entities.
    2. When the plan is generated for a parameterised query, the parameter types are
    set in all the RemoteQuery nodes in the plan.
    3. At the time of execution, the parameter type names are sent to the datanodes,
    in the Parse message. Changes are done to send and receive parameter type names
    instead of OIDs.
    4. The GROUP BY optimizations are now applied even in the case when there are
    bound parameters in the query.

M	src/backend/commands/prepare.c
M	src/backend/executor/functions.c
M	src/backend/nodes/copyfuncs.c
M	src/backend/optimizer/plan/createplan.c
M	src/backend/optimizer/plan/planner.c
M	src/backend/parser/analyze.c
M	src/backend/pgxc/plan/planner.c
M	src/backend/pgxc/pool/execRemote.c
M	src/backend/pgxc/pool/pgxcnode.c
M	src/backend/tcop/postgres.c
M	src/include/commands/prepare.h
M	src/include/pgxc/execRemote.h
M	src/include/pgxc/planner.h

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

Summary of changes:
 src/backend/commands/prepare.c          |   68 +++++++++++++++++-------------
 src/backend/executor/functions.c        |   19 +++++++++
 src/backend/nodes/copyfuncs.c           |    2 -
 src/backend/optimizer/plan/createplan.c |    6 ---
 src/backend/optimizer/plan/planner.c    |   14 ++++++
 src/backend/parser/analyze.c            |    2 -
 src/backend/pgxc/plan/planner.c         |   10 -----
 src/backend/pgxc/pool/execRemote.c      |   42 ++++++++++---------
 src/backend/pgxc/pool/pgxcnode.c        |   38 +++++++++++++----
 src/backend/tcop/postgres.c             |   45 ++++++++++++++++++--
 src/include/commands/prepare.h          |    2 +
 src/include/pgxc/execRemote.h           |    4 ++
 src/include/pgxc/planner.h              |    5 --
 13 files changed, 169 insertions(+), 88 deletions(-)


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