doc: PG 16 relnotes, update for beta 2

diff --git a/doc/src/sgml/release-16.sgml b/doc/src/sgml/release-16.sgml
index 15e06dfbc5197726cd244f2c4c3ed92b83916548..21fe8bb4868e8d2ce3b586a3f48c1ba9e8ed2c95 100644 (file)
--- a/doc/src/sgml/release-16.sgml
+++ b/doc/src/sgml/release-16.sgml
@@ -6,7 +6,7 @@
 
   
    Release date:
-   AS OF 2023-05-17, 2023-??-??
+   AS OF 2023-06-26, 2023-??-??
   
 
   
@@ -229,6 +229,39 @@ This was used to promote a standby to primary, but is now easier accomplished wi
 
 
 
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+Remove read-only server variables lc_collate and lc_ctype (Peter Eisentraut)
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+Collations and locales can vary between databases so having them as read-only server variables was unhelpful.
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+Deprecate createuser option --role (Nathan Bossart)
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+This option could be easily confused with new createuser role membership options, so option --member-of has been added with the same functionality.
+The --role option can still be used.
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@@ -1309,6 +1348,21 @@ However, ICU doesn't support the C locale so UTF-8 is used in such cases.  Previ
 
 
 
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+Have CREATE DATABASE and CREATE COLLATION's LOCALE options, and initdb and createdb --locale options, control non-libc collation providers (Jeff Davis)
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+Previously they only controlled libc providers.
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@@ -2978,6 +3034,17 @@ This is similar to bt_page_stats() except it can report on a range of pages.
 
 
 
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+Add empty range output column to pageinspect function brin_page_items() (Tomas Vondra)
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