pgsql: Fix check_sql_fn_retval to allow the case where a SQL function

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Fix check_sql_fn_retval to allow the case where a SQL function
Date: 2007-04-02 18:49:49
Message-ID: 20070402184949.DFC9F9FB79E@postgresql.org
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Log Message:
-----------
Fix check_sql_fn_retval to allow the case where a SQL function declared to
return void ends with a SELECT, if that SELECT has a single result that is
also of type void. Without this, it's hard to write a void function that
calls another void function. Per gripe from Peter.

Back-patch as far as 8.0.

Tags:
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REL8_0_STABLE

Modified Files:
--------------
pgsql/src/backend/executor:
functions.c (r1.91.4.3 -> r1.91.4.4)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/functions.c.diff?r1=1.91.4.3&r2=1.91.4.4)

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