</screen>

The tests will expect to contact the server at the local host and the

default port number, unless directed otherwise by <envar>PGHOST</envar> and

<envar>PGPORT</envar> environment variables.

<envar>PGPORT</envar> environment variables. The tests will be run in a

database named <literal>regression</>; any existing database by this name

will be dropped.

</para>

<para>

</screen>

The <filename>contrib</> modules must have been built and installed first.

You can also do this in a subdirectory of <filename>contrib</> to run

the tests for just one module.

the tests for just one module. Tests of <literal>contrib</> modules will

be run in a database named <literal>contrib_regression</>; any existing

database by this name will be dropped.

</para>

</sect2>

not worry unless the random test fails repeatedly.

</para>

</sect2>

<sect2>

<title>Configuration Parameters</title>

<para>

When running the tests against an existing installation, some non-default

parameter settings could cause the tests to fail. For example, the

settings described in <xref linkend="runtime-config-query-enable">

could cause plan changes that would affect the results of tests which

use <command>EXPLAIN</>.

</para>

</sect2>

</sect1>

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