postgres-xc-committers Mailing List for Postgres-XC

Project "Postgres-XC".

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commit 76d3b40cba22469361215fd4937db84eb9d0ce6e
Author: Ashutosh Bapat <ash...@en...>
Date:   Mon Apr 2 15:49:53 2012 +0530

    Query deparser can not handle PlaceHolderVar nodes. PlaceHolderVar node is added when
    subqueries are pulled up. They are removed before execution starts by function
    fix_scan_expr() for scan nodes. This function is static to setrefs.c, and thus
    needs a wrapper to expose it outside that file. In create_remotequery_plan()
    apply fix_scan_expr() on the target list and quals to remove PlaceHolderVar
    nodes from those.

M	src/backend/optimizer/plan/createplan.c
M	src/backend/optimizer/plan/setrefs.c
M	src/include/optimizer/planmain.h

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

Summary of changes:
 src/backend/optimizer/plan/createplan.c |   10 ++++++++++
 src/backend/optimizer/plan/setrefs.c    |    8 ++++++++
 src/include/optimizer/planmain.h        |    2 ++
 3 files changed, 20 insertions(+), 0 deletions(-)


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Postgres-XC

Project "Postgres-XC".

The branch, master has been updated
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commit a40e4ef8d222bf9cdc3952e7af668864949b0d00
Author: Ashutosh Bapat <ash...@en...>
Date:   Mon Apr 2 15:39:32 2012 +0530

    Any data exchange between coordinator and datanode happens in the form of text,
    obtained by calling I/O functions for datatypes.  For float4 and float8 we used
    float*out function which limit the number of digits in the string to
    DBL_DIG/FLT_DIG (both 16) + extra_float_digits (GUC). By default the later value
    is 0. Rest of the digits are truncated. Thus we see a difference at the 16th
    digit when we add up truncated floating point transition results from datanodes.
    
    The fix here is really to move from text based data exchange to binary data
    exchange between coordinator and datanode, which will preserve the precision of
    floating point. This is basic change and might be risky to apply just before the
    release. Hence adding alternate output file.
    
    The test aggregates has EXPLAIN outputs specific to PostgreSQL. Those outputs
    are not valid in Postgres-XC. Hence updating the expected output with EXPLAIN
    outputs obtained in Postgres-XC.

M	src/test/regress/expected/aggregates.out
A	src/test/regress/expected/aggregates_1.out
M	src/test/regress/sql/aggregates.sql

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

Summary of changes:
 src/test/regress/expected/aggregates.out           |  255 +++++++-----------
 .../expected/{aggregates.out => aggregates_1.out}  |  281 ++++++++------------
 src/test/regress/sql/aggregates.sql                |   30 ++-
 3 files changed, 237 insertions(+), 329 deletions(-)
 copy src/test/regress/expected/{aggregates.out => aggregates_1.out} (79%)


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Postgres-XC

Project "Postgres-XC".

The branch, master has been updated
       via  d7134501525dd2a3d7c8fc30a8f29fdaab110d98 (commit)
      from  2689d1bfcc102d6cbf74f5425a98a221c22e33c1 (commit)


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commit d7134501525dd2a3d7c8fc30a8f29fdaab110d98
Author: Amit Khandekar <ami...@en...>
Date:   Mon Apr 2 14:19:44 2012 +0530

    Pass to the pooler session, the default values for some parameters, like
    DATESTYLE, TZ. If a psql client sets these as environment vars, these do
    not get propagated to datanodes, as a result of which the date formats
    returned do not match PGDATESTYLE for e.g. So, in general these session
    default values should be passed on to session poolers connections to datanodes
    and remote coordinator.
    These values help maintain consistent param values between the datanodes and the
    coordinator for a given client session. The params are passed from coordinator
    backend to the pooler session using pgoptions (for e.g. '-c datestyle=Postgres,MDY'.
    And the database pools are searched for unique combination of database, username
    and pgoptions; earlier it was based on database and username only.

M	src/backend/pgxc/pool/pgxcnode.c
M	src/backend/pgxc/pool/poolmgr.c
M	src/backend/tcop/postgres.c
M	src/include/pgxc/pgxcnode.h
M	src/include/pgxc/poolmgr.h

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

Summary of changes:
 src/backend/pgxc/pool/pgxcnode.c |    6 +-
 src/backend/pgxc/pool/poolmgr.c  |  120 +++++++++++++++++++++++++++----------
 src/backend/tcop/postgres.c      |    2 +-
 src/include/pgxc/pgxcnode.h      |    2 +-
 src/include/pgxc/poolmgr.h       |    7 ++-
 5 files changed, 98 insertions(+), 39 deletions(-)


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Postgres-XC

Project "Postgres-XC".

The branch, master has been updated
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      from  5c3f03ccffa86b775e1d4d9be668accebaa2e4c9 (commit)


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commit 2689d1bfcc102d6cbf74f5425a98a221c22e33c1
Author: Michael P <mi...@ot...>
Date:   Mon Apr 2 15:20:07 2012 +0900

    Correct warning in xact.c: initializer element is not constant
    
    Well, a static element was used instead of a const.

M	src/backend/access/transam/xact.c

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

Summary of changes:
 src/backend/access/transam/xact.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


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