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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 17:57:07
Message-ID: 20100730175707.430B97541D5@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_3_STABLE

Modified Files:
--------------
    pgsql/src/backend/parser:
        parse_expr.c (r1.226.2.4 -> r1.226.2.5)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_expr.c?r1=1.226.2.4&r2=1.226.2.5)
        parse_func.c (r1.201 -> r1.201.2.1)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_func.c?r1=1.201&r2=1.201.2.1)
        parse_oper.c (r1.101 -> r1.101.2.1)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/parse_oper.c?r1=1.101&r2=1.101.2.1)
    pgsql/src/include/parser:
        parse_func.h (r1.59 -> r1.59.2.1)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/parser/parse_func.h?r1=1.59&r2=1.59.2.1)

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