diff options
Diffstat (limited to 'doc/src/sgml/release-18.sgml')
| -rw-r--r-- | doc/src/sgml/release-18.sgml | 27 |
1 files changed, 2 insertions, 25 deletions
diff --git a/doc/src/sgml/release-18.sgml b/doc/src/sgml/release-18.sgml index cdf47ac6d2a..a2b1921fbbb 100644 --- a/doc/src/sgml/release-18.sgml +++ b/doc/src/sgml/release-18.sgml @@ -459,8 +459,6 @@ Author: Peter Geoghegan <pg@bowt.ie> 2025-04-04 [92fe23d93] Add nbtree skip scan optimization. Author: Peter Geoghegan <pg@bowt.ie> 2025-04-04 [8a510275d] Further optimize nbtree search scan key comparisons. -Author: Peter Geoghegan <pg@bowt.ie> -2025-04-04 [8a510275d] Further optimize nbtree search scan key comparisons. --> <listitem> @@ -468,11 +466,11 @@ Author: Peter Geoghegan <pg@bowt.ie> Allow skip scans of btree indexes (Peter Geoghegan) <ulink url="&commit_baseurl;92fe23d93">§</ulink> <ulink url="&commit_baseurl;8a510275d">§</ulink> -<ulink url="&commit_baseurl;8a510275d">§</ulink> </para> <para> -This is effective if the earlier non-referenced columns contain few unique values. +This allows muti-column btree indexes to be used by queries that only +reference the second or later indexed columns. </para> </listitem> @@ -589,27 +587,6 @@ Improve the locking performance of queries that access many relations (Tomas Von </listitem> <!-- -Author: Amit Langote <amitlan@postgresql.org> -2025-01-30 [bb3ec16e1] Move PartitionPruneInfo out of plan nodes into PlannedSt -Author: Amit Langote <amitlan@postgresql.org> -2025-01-31 [d47cbf474] Perform runtime initial pruning outside ExecInitNode() -Author: Amit Langote <amitlan@postgresql.org> -2025-02-07 [cbc127917] Track unpruned relids to avoid processing pruned relatio -Author: Amit Langote <amitlan@postgresql.org> -2025-02-20 [525392d57] Don't lock partitions pruned by initial pruning ---> - -<listitem> -<para> -Avoid the locking of pruned partitions during execution (Amit Langote) -<ulink url="&commit_baseurl;bb3ec16e1">§</ulink> -<ulink url="&commit_baseurl;d47cbf474">§</ulink> -<ulink url="&commit_baseurl;cbc127917">§</ulink> -<ulink url="&commit_baseurl;525392d57">§</ulink> -</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> |