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Remove CustomPath's TextOutCustomPath method.

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You can't really do anything useful with this in the form it currently
exists; among other problems, there's no way to reread whatever
information might be produced when the path is output.  Work is
underway to replace this with a more useful and more general system of
extensible nodes, but let's start by getting rid of this bit.

Extracted from a larger patch by KaiGai Kohei.
This commit is contained in:
Robert Haas
2016-02-03 10:38:50 -05:00
parent dc203dc3ac
commit f2305d40ec
3 changed files with 0 additions and 18 deletions
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13
doc/src/sgml/custom-scan.sgml
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@ -125,19 +125,6 @@ Plan *(*PlanCustomPath) (PlannerInfo *root,
be a <literal>CustomScan</> object, which the callback must allocate and
initialize. See <xref linkend="custom-scan-plan"> for more details.
</para>
<para>
<programlisting>
void (*TextOutCustomPath) (StringInfo str,
const CustomPath *node);
</programlisting>
Generate additional output when <function>nodeToString</> is invoked on
this custom path. This callback is optional. Since
<function>nodeToString</> will automatically dump all fields in the
structure that it can see, including <structfield>custom_private</>, this
is only useful if the <structname>CustomPath</> is actually embedded in a
larger struct containing additional fields.
</para>
</sect2>
</sect1>