Don't let transform_null_equals=on affect CASE foo WHEN NULL ... constructs. transform_null_equals is only supposed to affect "foo = NULL" expressions given directly by the user, not the internal "foo = NULL" expression generated from CASE-WHEN.
This fixes bug #6242, reported by Sergey. Backpatch to all supported branches. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/1ef60dab7049ffac52dee60b5788b6c7bc1f9d67 Modified Files -------------- src/backend/parser/parse_expr.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
