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mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00

doc: Updates for RETURNING OLD/NEW.

Fix a couple of sentences in the documentation that were missed in
commit 80feb727c8.

Author: Dean Rasheed <dean.a.rasheed@gmail.com>
Reviewed-by: Robert Treat <rob@xzilla.net>
Discussion: https://postgr.es/m/CAEZATCUcqADJuapZSjPf2b6hFJ6AGOUwefRvh8Ht3UZoqqw69Q@mail.gmail.com
This commit is contained in:
Dean Rasheed
2025-06-26 10:13:00 +01:00
parent eca624c659
commit 3ba9639e39
2 changed files with 6 additions and 4 deletions

View File

@ -106,10 +106,11 @@ MERGE INTO [ ONLY ] <replaceable class="parameter">target_table_name</replaceabl
to compute and return value(s) based on each row inserted, updated, or
deleted. Any expression using the source or target table's columns, or
the <link linkend="merge-action"><function>merge_action()</function></link>
function can be computed. When an <command>INSERT</command> or
function can be computed. By default, when an <command>INSERT</command> or
<command>UPDATE</command> action is performed, the new values of the target
table's columns are used. When a <command>DELETE</command> is performed,
the old values of the target table's columns are used. The syntax of the
table's columns are used, and when a <command>DELETE</command> is performed,
the old values of the target table's columns are used, but it is also
possible to explicitly request old and new values. The syntax of the
<literal>RETURNING</literal> list is identical to that of the output list
of <command>SELECT</command>.
</para>

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@ -57,7 +57,8 @@ UPDATE [ ONLY ] <replaceable class="parameter">table_name</replaceable> [ * ] [
to compute and return value(s) based on each row actually updated.
Any expression using the table's columns, and/or columns of other
tables mentioned in <literal>FROM</literal>, can be computed.
The new (post-update) values of the table's columns are used.
By default, the new (post-update) values of the table's columns are used,
but it is also possible to request the old (pre-update) values.
The syntax of the <literal>RETURNING</literal> list is identical to that of the
output list of <command>SELECT</command>.
</para>