From b9a0724cf7a3ecf19aaaa098ffd26e52bb800c5c Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Fri, 14 Jun 2019 09:30:31 -0400
Subject: [PATCH] doc: PG 12 relnotes, add mention of single-child
optimization
Add mention of single-child optimization for partitions and UNION ALL.
Reported-by: David Rowley
Discussion: https://postgr.es/m/CAKJS1f8R8riwBXw==7ijV=UZNuhP+3qXgDBKSiM+=_cTf4mXXw@mail.gmail.com
---
doc/src/sgml/release-12.sgml | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/doc/src/sgml/release-12.sgml b/doc/src/sgml/release-12.sgml
index 76abc95b128..aa3845f5dde 100644
--- a/doc/src/sgml/release-12.sgml
+++ b/doc/src/sgml/release-12.sgml
@@ -842,6 +842,18 @@ Author: Tom Lane <tgl@sss.pgh.pa.us>
<listitem>
<!--
Author: Tom Lane <tgl@sss.pgh.pa.us>
+2019-03-25 [8edd0e794] Suppress Append and MergeAppend plan nodes that have a s
+-->
+
+ <para>
+ Improve optimization of partition and <literal>UNION ALL</literal>
+ queries that have only a single child (David Rowley)
+ </para>
+ </listitem>
+
+ <listitem>
+<!--
+Author: Tom Lane <tgl@sss.pgh.pa.us>
2018-12-13 [04fe805a1] Drop no-op CoerceToDomain nodes from expressions at plan
-->
--
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