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pgsql: Fix ExecMakeTableFunctionResult to verify that all rows returned

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Fix ExecMakeTableFunctionResult to verify that all rows returned
Date: 2010-08-26 18:54:59
Message-ID: 20100826185459.3201C7541D7@cvs.postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
Log Message:
-----------
Fix ExecMakeTableFunctionResult to verify that all rows returned by a SRF
returning "record" actually do have the same rowtype.  This is needed because
the parser can't realistically enforce that they will all have the same typmod,
as seen in a recent example from David Wheeler.

Back-patch to 8.0, which is as far back as we have the notion of RECORD
subtypes being distinguished by typmod.  Wheeler's example depends on
8.4-and-up features, but I suspect there may be ways to provoke similar
failures before 8.4.

Tags:
----
REL8_3_STABLE

Modified Files:
--------------
    pgsql/src/backend/executor:
        execQual.c (r1.226.2.3 -> r1.226.2.4)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/execQual.c?r1=1.226.2.3&r2=1.226.2.4)

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