postgres-xc-committers Mailing List for Postgres-XC (Page 2)

A ref change was pushed to the repository containing the project "Postgres-XC: write-scalable synchronous multi-master PostgreSQL cluster".

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      from  ad2e28f5d1de93bd3a9174386b146f89d4330ade (commit)

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- Log -----------------------------------------------------------------
commit ae79d556dc119885cc529eeaf8fc81b57eb116b0
Author: Mason S <masonsharp@mason-sharps-macbook.local>
Date:   Wed May 12 21:09:44 2010 -0400

    This is the first of some planned changes to recognize more "Postgres-XC safe"
    queries, before we implement more complex cross-node operations.
    
    This focuses on native pg_catalog based views like pg_settings.
    This is because it used by pgadmin. With the attached patch, pgadmin no
    longer complains about such queries because they are now supported.
    
    The PostgreSQL query rewriter appears to convert the view into a subquery.
    I modified the XC planner to check for pg_catalog table usage in the
    FROM clause (and subqueries thereof).
    
    In addition, pgadmin was sending "SET client_encoding to 'UNICODE'".
    It was being swallowed and proxied by Postgres-XC, but no response was sent
    back because it did not recognize the 'S' message response. I have now
    added support for that, too.
    
    Note that we have planned a whole separate task planned for proper SET
    handling. These commands will now be processed, but the user should not
    assume that these will remain set, due to Postgres-XC pooler.
    Again, we will address this in the future.
    
    With this patch pgadmin runs much more smoothly when connected to Postgres-XC.
    Users can view schema information and issue SQL statements.  There is
    still an error window that pops up when clicking on a table because it
    issues a "SELECT count(*) FROM table", which is not yet supported in
    Postgres-XC. This problem will disappear soon however, as a patch is
    almost ready for basic aggregate support.

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

Summary of changes:
 src/backend/pgxc/plan/planner.c     |  154 ++++++++++++++++++++++++++++-------
 src/backend/pgxc/pool/combiner.c    |   18 ++++
 src/backend/pgxc/pool/datanode.c    |    1 +
 src/backend/utils/cache/lsyscache.c |   29 +++++++
 src/include/pgxc/locator.h          |   10 +++
 src/include/utils/lsyscache.h       |    3 +
 6 files changed, 184 insertions(+), 31 deletions(-)


hooks/post-receive
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Postgres-XC: write-scalable synchronous multi-master PostgreSQL cluster

A ref change was pushed to the repository containing the project "Postgres-XC: write-scalable synchronous multi-master PostgreSQL cluster".

The branch, master has been updated
       via  ad2e28f5d1de93bd3a9174386b146f89d4330ade (commit)
      from  66240cfcfa148da5d8c8cb8569ebca1c96969fff (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
commit ad2e28f5d1de93bd3a9174386b146f89d4330ade
Author: Mason S <mas...@ma...>
Date:   Mon May 10 10:31:44 2010 -0400

    Modified pgbench for Postgres-XC.
    
    By default, it will use branch id to distribute by, and also include it in the queries.
    This allows for better multi-node scalability.  For this configuration, we do not
    have to worry about implicit two phase commits occurring.
    
    If running in either initialization or execution mode, alternatively a new option
    -k may be used (-k = "key" = no branch id).
    
    If included with -i, tables are distributed according to their primary key.
    This means we will see a lot of two phase commit activity over multiple data nodes.
    
    Similarly, if -k is included when running tests, branchid (bid) will NOT
    be used as part of the DML statements. This helps us measure the impact of 2PC.

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

Summary of changes:
 contrib/pgbench/pgbench.c |  144 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 144 insertions(+), 0 deletions(-)


hooks/post-receive
-- 
Postgres-XC: write-scalable synchronous multi-master PostgreSQL cluster

A ref change was pushed to the repository containing the project "Postgres-XC: write-scalable synchronous multi-master PostgreSQL cluster".

The branch, master has been updated
       via  66240cfcfa148da5d8c8cb8569ebca1c96969fff (commit)
      from  0391e49d2ce9d95c54c25c375b1c20afce84d1f8 (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
commit 66240cfcfa148da5d8c8cb8569ebca1c96969fff
Author: Mason S <mas...@ma...>
Date:   Mon May 3 16:38:46 2010 -0400

    Added support for COPY TO a file or STDOUT.
    
    It currently only supports from a single table, copy with SELECT is not
    yet supported.
    
    This was written by Michael Paquier.

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

Summary of changes:
 src/backend/commands/copy.c        |  105 ++++++++++++++++++++++++++++++++----
 src/backend/pgxc/locator/locator.c |   11 +++--
 src/backend/pgxc/pool/combiner.c   |   61 +++++++++++++++++++--
 src/backend/pgxc/pool/datanode.c   |  100 ++++++++++++++++++++++++++++++----
 src/backend/tcop/postgres.c        |   17 +++++-
 src/backend/tcop/utility.c         |   12 ++++-
 src/include/commands/copy.h        |    5 ++-
 src/include/pgxc/combiner.h        |    1 +
 src/include/pgxc/datanode.h        |    3 +-
 src/include/pgxc/locator.h         |    2 +-
 10 files changed, 279 insertions(+), 38 deletions(-)


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Postgres-XC: write-scalable synchronous multi-master PostgreSQL cluster