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Support for OUT parameters in procedures

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Unlike for functions, OUT parameters for procedures are part of the
signature.  Therefore, they have to be listed in pg_proc.proargtypes
as well as mentioned in ALTER PROCEDURE and DROP PROCEDURE.

Reviewed-by: Andrew Dunstan <andrew.dunstan@2ndquadrant.com>
Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>
Discussion: https://www.postgresql.org/message-id/flat/2b8490fe-51af-e671-c504-47359dc453c5@2ndquadrant.com
This commit is contained in:
Peter Eisentraut
2020-10-05 09:09:09 +02:00
parent e899742081
commit 2453ea1422
28 changed files with 416 additions and 93 deletions
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6
doc/src/sgml/ref/create_procedure.sgml
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@@ -97,11 +97,9 @@ CREATE [ OR REPLACE ] PROCEDURE
<listitem>
<para>
The mode of an argument: <literal>IN</literal>,
The mode of an argument: <literal>IN</literal>, <literal>OUT</literal>,
<literal>INOUT</literal>, or <literal>VARIADIC</literal>. If omitted,
the default is <literal>IN</literal>. (<literal>OUT</literal>
arguments are currently not supported for procedures. Use
<literal>INOUT</literal> instead.)
the default is <literal>IN</literal>.
</para>
</listitem>
</varlistentry>