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Document DELETE/UPDATE command tag behavior when triggers are involved.

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Marti Raudsepp
This commit is contained in:
Robert Haas
2011-10-10 12:53:04 -04:00
parent 0ff7ea5d3c
commit 61dd737c29
2 changed files with 12 additions and 8 deletions
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10
doc/src/sgml/ref/delete.sgml
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@@ -206,10 +206,12 @@ DELETE FROM [ ONLY ] <replaceable class="PARAMETER">table</replaceable> [ [ AS ]
DELETE <replaceable class="parameter">count</replaceable>
</screen>
The <replaceable class="parameter">count</replaceable> is the number
of rows deleted. If <replaceable class="parameter">count</replaceable> is
0, no rows matched the <replaceable
class="parameter">condition</replaceable> (this is not considered
an error).
of rows deleted. Note that the number may be less than the number of
rows that matched the <replaceable
class="parameter">condition</replaceable> when deletes were
suppressed by a <literal>BEFORE DELETE</> trigger. If <replaceable
class="parameter">count</replaceable> is 0, no rows were deleted by
the query (this is not considered an error).
</para>
<para>