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doc PG 18 relnotes: move and clarify constraint items

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Reported-by: Álvaro Herrera

Discussion: https://postgr.es/m/202505041135.cpo7zgdcya2u@alvherre.pgsql
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Bruce Momjian 2025-05-04 22:08:20 -04:00
parent 8c9eec540d
commit d83981c24b
1 changed files with 51 additions and 52 deletions
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103
doc/src/sgml/release-18.sgml
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@ -1530,23 +1530,6 @@ This is specified by WITHOUT OVERLAPS on the last column.
</para>
</listitem>
<!--
Author: Peter Eisentraut <peter@eisentraut.org>
2024-11-15 [9321d2fdf] Fix collation handling for foreign keys
-->
<listitem>
<para>
Require primary/foreign key relationships to use either deterministic collations or the the same nondeterministic collations (Peter Eisentraut)
<ulink url="&commit_baseurl;9321d2fdf">&sect;</ulink>
</para>
<para>
The restore of a pg_dump, also used by pg_upgrade, will fail if these requirements are not met; schema changes must be made for these upgrade methods to succeed.
</para>
</listitem>
<!--
Author: Peter Eisentraut <peter@eisentraut.org>
2025-01-11 [ca87c415e] Add support for NOT ENFORCED in CHECK constraints
@ -1566,6 +1549,38 @@ This also adds column pg_constraint.conenforced.
</para>
</listitem>
<!--
Author: Peter Eisentraut <peter@eisentraut.org>
2024-11-15 [9321d2fdf] Fix collation handling for foreign keys
-->
<listitem>
<para>
Require primary/foreign key relationships to use either deterministic collations or the the same nondeterministic collations (Peter Eisentraut)
<ulink url="&commit_baseurl;9321d2fdf">&sect;</ulink>
</para>
<para>
The restore of a pg_dump, also used by pg_upgrade, will fail if these requirements are not met; schema changes must be made for these upgrade methods to succeed.
</para>
</listitem>
<!--
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2024-11-08 [14e87ffa5] Add pg_constraint rows for not-null constraints
-->
<listitem>
<para>
Store column NOT NULL specifications in pg_constraint (Álvaro Herrera, Bernd Helmle)
<ulink url="&commit_baseurl;14e87ffa5">&sect;</ulink>
</para>
<para>
This allows names to be specified for NOT NULL constraint. This also adds NOT NULL constraints to foreign tables and NOT NULL inheritance control to local tables.
</para>
</listitem>
<!--
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2025-04-07 [a379061a2] Allow NOT NULL constraints to be added as NOT VALID
@ -1578,6 +1593,25 @@ Allow ALTER TABLE to set the NOT VALID attribute of NOT NULL constraints (Rushab
</para>
</listitem>
<!--
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2025-03-05 [f4e53e10b] Add ALTER TABLE ... ALTER CONSTRAINT ... SET [NO] INHERI
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2025-03-27 [4a02af8b1] Simplify syntax for ALTER TABLE ALTER CONSTRAINT NO INHE
-->
<listitem>
<para>
Allow modification of the inheritability of NOT NULL constraints (Suraj Kharage, Álvaro Herrera)
<ulink url="&commit_baseurl;f4e53e10b">&sect;</ulink>
<ulink url="&commit_baseurl;4a02af8b1">&sect;</ulink>
</para>
<para>
The syntax is ALTER TABLE ... ALTER CONSTRAINT ... [NO] INHERIT.
</para>
</listitem>
<!--
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2025-01-23 [b663b9436] Allow NOT VALID foreign key constraints on partitioned t
@ -1604,41 +1638,6 @@ Allow dropping of constraints ONLY on partitioned tables (Álvaro Herrera)
<para>
This was previously erroneously prohibited.
</para>
</listitem>
<!--
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2025-03-05 [f4e53e10b] Add ALTER TABLE ... ALTER CONSTRAINT ... SET [NO] INHERI
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2025-03-27 [4a02af8b1] Simplify syntax for ALTER TABLE ALTER CONSTRAINT NO INHE
-->
<listitem>
<para>
Allow modification of the inheritability of constraints (Suraj Kharage, Álvaro Herrera)
<ulink url="&commit_baseurl;f4e53e10b">&sect;</ulink>
<ulink url="&commit_baseurl;4a02af8b1">&sect;</ulink>
</para>
<para>
The syntax is ALTER TABLE ... ALTER CONSTRAINT ... [NO] INHERIT.
</para>
</listitem>
<!--
Author: Álvaro Herrera <alvherre@alvh.no-ip.org>
2024-11-08 [14e87ffa5] Add pg_constraint rows for not-null constraints
-->
<listitem>
<para>
Store column NOT NULL specifications in pg_constraint (Álvaro Herrera, Bernd Helmle)
<ulink url="&commit_baseurl;14e87ffa5">&sect;</ulink>
</para>
<para>
This allows names to be specified for NOT NULL constraint. This also adds NOT NULL constraints to foreign tables and NOT NULL inheritance control to local tables.
</para>
</listitem>
</itemizedlist>