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MERGE INSERT allows only one VALUES clause

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Doc syntax and brief mention of restriction
This commit is contained in:
Simon Riggs 2018-04-05 12:03:42 +01:00
parent 17d8beb4f5
commit a5d86181ec
1 changed files with 2 additions and 1 deletions
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doc/src/sgml/ref/merge.sgml
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@ -41,7 +41,7 @@ and <replaceable class="parameter">merge_insert</replaceable> is
INSERT [( <replaceable class="parameter">column_name</replaceable> [, ...] )]
[ OVERRIDING { SYSTEM | USER } VALUE ]
{ VALUES ( { <replaceable class="parameter">expression</replaceable> | DEFAULT } [, ...] ) | DEFAULT VALUES }
{ VALUES ( { <replaceable class="parameter">expression</replaceable> | DEFAULT } ) | DEFAULT VALUES }
and <replaceable class="parameter">merge_update</replaceable> is
@ -285,6 +285,7 @@ DELETE
<command>INSERT</command> actions cannot contain sub-selects.
</para>
<para>
Only one <literal>VALUES</literal> clause can be specified.
The <literal>VALUES</literal> clause can only refer to columns from
the source relation, since by definition there is no matching target row.
</para>