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Change the name of the Result Cache node to Memoize

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"Result Cache" was never a great name for this node, but nobody managed
to come up with another name that anyone liked enough.  That was until
David Johnston mentioned "Node Memoization", which Tom Lane revised to
just "Memoize".  People seem to like "Memoize", so let's do the rename.

Reviewed-by: Justin Pryzby
Discussion: https://postgr.es/m/20210708165145.GG1176@momjian.us
Backpatch-through: 14, where Result Cache was introduced
This commit is contained in:
David Rowley
2021-07-14 12:45:00 +12:00
parent 6201fa3c16
commit 47ca483644
44 changed files with 596 additions and 607 deletions
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8
doc/src/sgml/config.sgml
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@ -5014,15 +5014,15 @@ ANY <replaceable class="parameter">num_sync</replaceable> ( <replaceable class="
</listitem>
</varlistentry>
<varlistentry id="guc-enable-resultcache" xreflabel="enable_resultcache">
<term><varname>enable_resultcache</varname> (<type>boolean</type>)
<varlistentry id="guc-enable-memoize" xreflabel="enable_memoize">
<term><varname>enable_memoize</varname> (<type>boolean</type>)
<indexterm>
<primary><varname>enable_resultcache</varname> configuration parameter</primary>
<primary><varname>enable_memoize</varname> configuration parameter</primary>
</indexterm>
</term>
<listitem>
<para>
Enables or disables the query planner's use of result cache plans for
Enables or disables the query planner's use of memoize plans for
caching results from parameterized scans inside nested-loop joins.
This plan type allows scans to the underlying plans to be skipped when
the results for the current parameters are already in the cache. Less

2
doc/src/sgml/release-14.sgml
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@ -1191,7 +1191,7 @@ Author: David Rowley <drowley@postgresql.org>
<para>
This is useful if only a small percentage of rows is checked on
the inner side and is controlled by <xref
linkend="guc-enable-resultcache"/>.
linkend="guc-enable-memoize"/>.
</para>
</listitem>