Re: Changeset Extraction v7.5

Hi,

attached you can find the next version of the patchset.

Changes:
* rebased ontop the committed slot patch (Thanks Robert!), that required
a fair amount of work
* adjusted naming of the SQL interface functions, to be consisted with ^
* several patches of the patchseries were merged
* Large amount of comment copy-editing
* Some code restructuring

There's one major things I am not yet really happy with which is the is
the integration of how decoding snapshots are integrated. I've gone back
and forth over it today, but I think I need a decent night of sleep to
bring it to a conclusion...

The patches are currently:

0001: wal_decoding: Introduce logical changeset extraction.
The meat of the functionality, including the SQL interface.

0002: wal_decoding: logical changeset extraction walsender interface
Walsender integration of changeset extraction, including support for
synchronous replication.

0003: wal_decoding: pg_recvlogical: Introduce pg_receivexlog equivalent for logical changes
Simple tool for receiving the changes over the walsender interface.

0004: wal_decoding: Documentation for replication slots and changeset extraction
...

0005: wal_decoding: Temporarily add logical decoding regression tests to everything
This is a patch I don't think should be finally applied, but which is
very helpful during debugging. It simply adds tests to the beginning/end of
the normal regression tests, decoding it in its entirety.

As always it's also pushed to
http://git.postgresql.org/gitweb/?p=users/andresfreund/postgres.git;a=summary
branch xlog-decoding-rebasing-remapping

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
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