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pgsql: Improved version of patch to protect pg_get_expr() against

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Improved version of patch to protect pg_get_expr() against
Date: 2010-07-30 17:56:59
Message-ID: 20100730175659.8FD9C7541D5@cvs.postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
Log Message:
-----------
Improved version of patch to protect pg_get_expr() against misuse:
look through join alias Vars to avoid breaking join queries, and
move the test to someplace where it will catch more possible ways
of calling a function.  We still ought to throw away the whole thing
in favor of a data-type-based solution, but that's not feasible in
the back branches.

Completion of back-port of my patch of yesterday.

Tags:
----
REL8_4_STABLE

Modified Files:
--------------
    pgsql/src/backend/parser:
        parse_expr.c (r1.241.2.5 -> r1.241.2.6)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_expr.c?r1=1.241.2.5&r2=1.241.2.6)
        parse_func.c (r1.216 -> r1.216.2.1)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_func.c?r1=1.216&r2=1.216.2.1)
        parse_oper.c (r1.109 -> r1.109.2.1)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_oper.c?r1=1.109&r2=1.109.2.1)
    pgsql/src/include/parser:
        parse_func.h (r1.65 -> r1.65.2.1)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/parser/parse_func.h?r1=1.65&r2=1.65.2.1)

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