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doc PG 18 relnotes: mv. hash joins and GROUP BY item to General
authorBruce Momjian <bruce@momjian.us>
Sat, 10 May 2025 03:39:34 +0000 (23:39 -0400)
committerBruce Momjian <bruce@momjian.us>
Sat, 10 May 2025 03:40:02 +0000 (23:40 -0400)
Reported-by: David Rowley
Discussion: https://postgr.es/m/CAApHDvqJz+Zf7a6abisqoTGottDSRD+YPx=aQSgCsCKD476vGA@mail.gmail.com

doc/src/sgml/release-18.sgml patch | blob | blame | history

diff --git a/doc/src/sgml/release-18.sgml b/doc/src/sgml/release-18.sgml
index 14d6a375beca0ec33b8f98bc934c31d27ae4298e..cdf47ac6d2ac74144ad352dd3179126ff13f61b8 100644 (file)
--- a/doc/src/sgml/release-18.sgml
+++ b/doc/src/sgml/release-18.sgml
@@ -376,34 +376,6 @@ Allow merge joins to use incremental sorts (Richard Guo)
 </para>
 </listitem>
 
-<!--
-Author: David Rowley <drowley@postgresql.org>
-2024-08-20 [adf97c156] Speed up Hash Join by making ExprStates support hashing
-Author: David Rowley <drowley@postgresql.org>
-2024-12-11 [0f5738202] Use ExprStates for hashing in GROUP BY and SubPlans
-Author: Jeff Davis <jdavis@postgresql.org>
-2025-03-24 [4d143509c] Create accessor functions for TupleHashEntry.
-Author: Jeff Davis <jdavis@postgresql.org>
-2025-03-24 [a0942f441] Add ExecCopySlotMinimalTupleExtra().
-Author: Jeff Davis <jdavis@postgresql.org>
-2025-03-24 [626df47ad] Remove 'additional' pointer from TupleHashEntryData.
--->
-
-<listitem>
-<para>
-Improve the performance and reduce memory usage of hash joins and GROUP BY (David Rowley, Jeff Davis)
-<ulink url="&commit_baseurl;adf97c156">&sect;</ulink>
-<ulink url="&commit_baseurl;0f5738202">&sect;</ulink>
-<ulink url="&commit_baseurl;4d143509c">&sect;</ulink>
-<ulink url="&commit_baseurl;a0942f441">&sect;</ulink>
-<ulink url="&commit_baseurl;626df47ad">&sect;</ulink>
-</para>
-
-<para>
-This also improves hash set operations used by EXCEPT, and hash lookups of subplan values.
-</para>
-</listitem>
-
 <!--
 Author: Amit Langote <amitlan@postgresql.org>
 2025-04-04 [88f55bc97] Make derived clause lookup in EquivalenceClass more effi
@@ -637,6 +609,34 @@ Avoid the locking of pruned partitions during execution (Amit Langote)
 </para>
 </listitem>
 
+<!--
+Author: David Rowley <drowley@postgresql.org>
+2024-08-20 [adf97c156] Speed up Hash Join by making ExprStates support hashing
+Author: David Rowley <drowley@postgresql.org>
+2024-12-11 [0f5738202] Use ExprStates for hashing in GROUP BY and SubPlans
+Author: Jeff Davis <jdavis@postgresql.org>
+2025-03-24 [4d143509c] Create accessor functions for TupleHashEntry.
+Author: Jeff Davis <jdavis@postgresql.org>
+2025-03-24 [a0942f441] Add ExecCopySlotMinimalTupleExtra().
+Author: Jeff Davis <jdavis@postgresql.org>
+2025-03-24 [626df47ad] Remove 'additional' pointer from TupleHashEntryData.
+-->
+
+<listitem>
+<para>
+Improve the performance and reduce memory usage of hash joins and GROUP BY (David Rowley, Jeff Davis)
+<ulink url="&commit_baseurl;adf97c156">&sect;</ulink>
+<ulink url="&commit_baseurl;0f5738202">&sect;</ulink>
+<ulink url="&commit_baseurl;4d143509c">&sect;</ulink>
+<ulink url="&commit_baseurl;a0942f441">&sect;</ulink>
+<ulink url="&commit_baseurl;626df47ad">&sect;</ulink>
+</para>
+
+<para>
+This also improves hash set operations used by EXCEPT, and hash lookups of subplan values.
+</para>
+</listitem>
+
 <!--
 Author: Melanie Plageman <melanieplageman@gmail.com>
 2025-02-11 [052026c9b] Eagerly scan all-visible pages to amortize aggressive va
This is the main PostgreSQL git repository.