Log Message:
-----------
Add code to eval_const_expressions() to support const-simplification of
CoerceViaIO nodes. This improves the ability of the planner to deal with
cases where the node input is a constant. Per bug #4170.
Tags:
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REL8_3_STABLE
Modified Files:
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pgsql/src/backend/optimizer/util:
clauses.c (r1.254.2.1 -> r1.254.2.2)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/util/clauses.c?r1=1.254.2.1&r2=1.254.2.2)