pgsql: Add a HINT per suggestion from Michael Glaesemann. - Mailing list pgsql-committers

Log Message:
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Add a HINT per suggestion from Michael Glaesemann.  Also, tweak OLD/NEW
test to avoid expensive contain_vars_of_level() scan in the normal case
where we're not inside a rule.

Modified Files:
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    pgsql/src/backend/parser:
        analyze.c (r1.341 -> r1.342)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/parser/analyze.c.diff?r1=1.341&r2=1.342)