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Remove hashagg_avoid_disk_plan GUC.

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Note: This GUC was originally named enable_hashagg_disk when it appeared
in commit 1f39bce0, which added disk-based hash aggregation.  It was
subsequently renamed in commit 92c58fd9.

Author: Peter Geoghegan
Reviewed-By: Jeff Davis, Álvaro Herrera
Discussion: https://postgr.es/m/9d9d1e1252a52ea1bad84ea40dbebfd54e672a0f.camel%40j-davis.com
Backpatch: 13-, where disk-based hash aggregation was introduced.
This commit is contained in:
Peter Geoghegan
2020-07-27 17:53:19 -07:00
parent a3ab7a707d
commit bcbf9446a2
5 changed files with 55 additions and 136 deletions
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17
doc/src/sgml/config.sgml
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@ -4840,23 +4840,6 @@ ANY <replaceable class="parameter">num_sync</replaceable> ( <replaceable class="
</listitem>
</varlistentry>
<varlistentry id="guc-hashagg-avoid-disk-plan" xreflabel="hashagg_avoid_disk_plan">
<term><varname>hashagg_avoid_disk_plan</varname> (<type>boolean</type>)
<indexterm>
<primary><varname>hashagg_avoid_disk_plan</varname> configuration parameter</primary>
</indexterm>
</term>
<listitem>
<para>
If set to <literal>on</literal>, causes the planner to avoid choosing
hashed aggregation plans that are expected to use the disk. If hashed
aggregation is chosen, it may still require the use of disk at
execution time, even if this parameter is enabled. The default is
<literal>off</literal>.
</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>
<sect2 id="runtime-config-query-constants">