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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
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@ -106,10 +106,11 @@ MERGE INTO [ ONLY ] <replaceable class="parameter">target_table_name</replaceabl
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to compute and return value(s) based on each row inserted, updated, or
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deleted. Any expression using the source or target table's columns, or
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the <link linkend="merge-action"><function>merge_action()</function></link>
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function can be computed. When an <command>INSERT</command> or
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function can be computed. By default, when an <command>INSERT</command> or
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<command>UPDATE</command> action is performed, the new values of the target
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table's columns are used. When a <command>DELETE</command> is performed,
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the old values of the target table's columns are used. The syntax of the
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table's columns are used, and when a <command>DELETE</command> is performed,
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the old values of the target table's columns are used, but it is also
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possible to explicitly request old and new values. The syntax of the
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<literal>RETURNING</literal> list is identical to that of the output list
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of <command>SELECT</command>.
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</para>
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@ -57,7 +57,8 @@ UPDATE [ ONLY ] <replaceable class="parameter">table_name</replaceable> [ * ] [
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to compute and return value(s) based on each row actually updated.
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Any expression using the table's columns, and/or columns of other
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tables mentioned in <literal>FROM</literal>, can be computed.
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The new (post-update) values of the table's columns are used.
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By default, the new (post-update) values of the table's columns are used,
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but it is also possible to request the old (pre-update) values.
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The syntax of the <literal>RETURNING</literal> list is identical to that of the
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output list of <command>SELECT</command>.
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</para>
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