From d3ef93f0ebc8bc831b436b1d473d7e80e73a3b1e Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Sat, 13 Oct 2018 17:29:12 -0400 Subject: [PATCH] Doc: further copy-editing for v11 release notes. Justin Pryzby, Jonathan S. Katz, and myself. Discussion: https://postgr.es/m/20181006134249.GD871@telsasoft.com --- doc/src/sgml/release-11.sgml | 81 ++++++++++++++++++------------------ 1 file changed, 41 insertions(+), 40 deletions(-) diff --git a/doc/src/sgml/release-11.sgml b/doc/src/sgml/release-11.sgml index 0d6b921f5b..188222fb54 100644 --- a/doc/src/sgml/release-11.sgml +++ b/doc/src/sgml/release-11.sgml @@ -26,12 +26,12 @@ - Partitioning by a hash key + Add support for partitioning by a hash key - Support for PRIMARY KEY, FOREIGN + Add support for PRIMARY KEY, FOREIGN KEY, indexes, and triggers on partitioned tables @@ -44,13 +44,14 @@ UPDATE statements that change a partition key - column now move affected rows to the appropriate partitions + column now cause affected rows to be moved to the appropriate + partitions - Improved SELECT performance due to enhanced - partition elimination strategies during query processing + Improve SELECT performance through enhanced + partition elimination strategies during query planning and execution @@ -116,9 +117,9 @@ - Many other useful performance improvements, including making - ALTER TABLE ... ADD COLUMN with a - non-null column default faster + Many other useful performance improvements, including a significant + speedup to ALTER TABLE ... ADD COLUMN with a + non-null column default, as it no longer rewrites the table data @@ -187,7 +188,7 @@ pg_dumpall's output script will now always create databases with their original locale and encoding, and hence will fail if the locale or encoding name is unknown to the - destination system. Previously CREATE DATABASE + destination system. Previously, CREATE DATABASE would be emitted without these specifications if the database locale and encoding matched the old cluster's defaults. @@ -307,7 +308,7 @@ - Previously they skipped one byte for each byte + Previously, they skipped one byte for each byte of template character, resulting in strange behavior if either string contained multibyte characters. @@ -345,7 +346,7 @@ Per the SQL standard, relative paths start from the document node of the XML input document, not the root node as these functions - formerly did it. + previously did. @@ -620,7 +621,7 @@ Creation of a trigger on a partitioned table automatically creates - triggers on all existing partitions, and on newly-created ones. + triggers on all existing and future partitions. This also allows deferred unique constraints on partitioned tables. @@ -648,8 +649,9 @@ --> - Allow updated rows to automatically move to new partitions based - on the new row contents (Amit Khandekar) + UPDATE statements that change a partition key + column now cause affected rows to be moved to the appropriate + partitions (Amit Khandekar) @@ -699,7 +701,7 @@ - Previously partition elimination only happened at planning + Previously, partition elimination only happened at planning time, meaning many joins and prepared queries could not use partition elimination. @@ -713,9 +715,8 @@ --> - Allow equality joins between partitioned tables with identically - partitioned child tables to join the child tables directly - (Ashutosh Bapat) + In an equality join between partitioned tables, allow matching + partitions to be joined directly (Ashutosh Bapat) @@ -772,7 +773,7 @@ --> - Allow btree indexes to be built in parallel (Peter Geoghegan, + Allow parallel building of a btree index (Peter Geoghegan, Rushabh Lathia, Heikki Linnakangas) @@ -1049,7 +1050,7 @@ same commits as above - Previously the most common values (MCVs) were + Previously, the most common values (MCVs) were identified based on their frequency compared to all column values. Now, MCVs are chosen based on their frequency compared to the non-MCV values. @@ -1069,7 +1070,7 @@ same commits as above - Previously such cases used the same selectivity estimates + Previously, such cases used the same selectivity estimates as > and <, respectively, unless the comparison constants are MCVs. This change is particularly helpful for queries @@ -1233,7 +1234,7 @@ same commits as above - Previously only non-join UPDATEs and + Previously, only non-join UPDATEs and DELETEs were pushed. @@ -1426,7 +1427,7 @@ same commits as above pg_execute_server_program. These roles now also control who can use server-side COPY and the file_fdw extension. - Previously only superusers could use these functions, and that + Previously, only superusers could use these functions, and that is still the default behavior. @@ -1443,7 +1444,7 @@ same commits as above - Specifically, these functions were modified: pg_ls_dir(), pg_read_file(), pg_read_binary_file(), @@ -1489,8 +1490,8 @@ same commits as above PostgreSQL only allows superusers to access postgres_fdw tables without - passwords, e.g. via peer. Previously the - session owner had to be a superuser to allow such access; now + passwords, e.g. via peer. Previously, the + session owner had to be a superuser to allow such access; now the view owner is checked instead. @@ -1594,7 +1595,7 @@ same commits as above - Previously the 16MB default could only be changed at compile time. + Previously, the 16MB default could only be changed at compile time. @@ -1604,13 +1605,12 @@ same commits as above --> - No longer retain WAL that spans two checkpoints + Retain WAL data for only a single checkpoint (Simon Riggs) - Retention of WAL records is only required for one - checkpoint. + Previously, WAL was retained for two checkpoints. @@ -1685,7 +1685,7 @@ same commits as above --> - Allow heap pages' checksums to be checked during streaming base + Allow checksums of heap pages to be verified during streaming base backup (Michael Banck) @@ -1965,8 +1965,8 @@ same commits as above Allow to_char() and to_timestamp() to specify the time zone's - hours and minutes from UTC (Nikita Glukhov, - Andrew Dunstan) + offset from UTC in hours and minutes + (Nikita Glukhov, Andrew Dunstan) @@ -2094,7 +2094,7 @@ same commits as above - Previously such circumstances generated errors. + Previously, such circumstances generated errors. @@ -2268,7 +2268,7 @@ same commits as above - Previously partition information would not be displayed for a + Previously, partition information would not be displayed for a partitioned table if it had no partitions. Also indicate which partitions are themselves partitioned. @@ -2350,7 +2350,7 @@ same commits as above - Previously tab completion queries could fail against older servers. + Previously, tab completion queries could fail against older servers. @@ -2438,7 +2438,7 @@ same commits as above Allow pgbench to do exponentiation - with pow() and power() + with pow() and power() (Raúl Marín Rodríguez) @@ -2909,9 +2909,10 @@ same commits as above --> - Make the computation of system column + Make the computation of pg_class.reltuples - more consistent (Tomas Vondra) + by VACUUM consistent with its computation + by ANALYZE (Tomas Vondra) @@ -3070,7 +3071,7 @@ same commits as above - Previously only superusers could call adminpack + Previously, only superusers could call adminpack functions; now role permissions are checked.