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Rename the newly-added commands for discarding session state.

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RESET SESSION, RESET PLANS, and RESET TEMP are now DISCARD ALL,
DISCARD PLANS, and DISCARD TEMP, respectively. This is to avoid
confusion with the pre-existing RESET variants: the DISCARD
commands are not actually similar to RESET. Patch from Marko
Kreen, with some minor editorialization.
This commit is contained in:
Neil Conway
2007-04-26 16:13:15 +00:00
parent 5ea27a4b28
commit 16efdb5ec7
19 changed files with 345 additions and 133 deletions
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59
doc/src/sgml/ref/reset.sgml
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@@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/reset.sgml,v 1.34 2007/04/12 22:34:45 neilc Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/reset.sgml,v 1.35 2007/04/26 16:13:09 neilc Exp $
PostgreSQL documentation
-->
@@ -22,7 +22,6 @@ PostgreSQL documentation
<synopsis>
RESET <replaceable class="PARAMETER">configuration_parameter</replaceable>
RESET ALL
RESET { PLANS | SESSION | TEMP | TEMPORARY }
</synopsis>
</refsynopsisdiv>
@@ -53,15 +52,6 @@ SET <replaceable class="parameter">configuration_parameter</replaceable> TO DEFA
See the <command>SET</> reference page for details on the
transaction behavior of <command>RESET</>.
</para>
<para>
<command>RESET</> can also be used to release internal resources
that are usually released at the end of session. <command>RESET
TEMP</> drops all temporary tables created in the current session.
<command>RESET PLANS</> releases all internally cached plans.
<command>RESET SESSION</> releases all externally visible temporary
resources associated with the current session.
</para>
</refsect1>
<refsect1>
@@ -86,56 +76,9 @@ SET <replaceable class="parameter">configuration_parameter</replaceable> TO DEFA
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>TEMP, TEMPORARY</literal></term>
<listitem>
<para>
Drops all temporary tables created in the current session.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>PLANS</literal></term>
<listitem>
<para>
Releases all cached query plans.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>SESSION</literal></term>
<listitem>
<para>
Releases all temporary resources associated with the current
session. This has the same effect as executing the following
command sequence:
<programlisting>
SET SESSION AUTHORIZATION DEFAULT;
RESET ALL;
DEALLOCATE ALL;
CLOSE ALL;
UNLISTEN *;
RESET PLANS;
RESET TEMP;
</programlisting>
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>Notes</title>
<para>
<command>RESET SESSION</> cannot be executed inside a transaction block.
</para>
</refsect1>
<refsect1>
<title>Examples</title>