Andres Freund d6fa44fce7 Add skip-empty-xacts option to test_decoding for use in the regression tests.
The regression tests for contrib/test_decoding regularly failed on
postgres instances that were very slow. Either because the hardware
itself was slow or because very expensive debugging options like
CLOBBER_CACHE_ALWAYS were used.

The reason they failed was just that some additional transactions were
decoded. Analyze and vacuum, triggered by autovac.

To fix just add a option to test_decoding to only display transactions
in which a change was actually displayed. That's not pretty because it
removes information from the tests; but better than constantly failing
tests in very likely harmless ways.

Backpatch to 9.4 where logical decoding was introduced.

Discussion: 20140629142511.GA26930@awork2.anarazel.de
2014-09-01 15:59:44 +02:00
..
2014-08-26 17:26:45 -04:00

The PostgreSQL contrib tree
---------------------------

This subtree contains porting tools, analysis utilities, and plug-in
features that are not part of the core PostgreSQL system, mainly
because they address a limited audience or are too experimental to be
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usefulness.

User documentation for each module appears in the main SGML
documentation.

When building from the source distribution, these modules are not
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Some directories supply new user-defined functions, operators, or
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the code you need to register the new SQL objects in the database
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you can simply do

    CREATE EXTENSION module_name;

See the PostgreSQL documentation for more information about this
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