Teach eval_const_expressions to simplify BooleanTest nodes that have
authorTom Lane <tgl@sss.pgh.pa.us>
Fri, 4 Aug 2006 14:09:51 +0000 (14:09 +0000)
committerTom Lane <tgl@sss.pgh.pa.us>
Fri, 4 Aug 2006 14:09:51 +0000 (14:09 +0000)
commite2d34d75e72fdef0acea3bce496d5f4594d124bb
tree281ed0edb7fb06fa8968bfcf6afb7959e3286f13
parent3ceaa97b3c6a17017bcfda35daa9c63993101de8
Teach eval_const_expressions to simplify BooleanTest nodes that have
constant input.  Seems worth doing because rule rewriter inserts
IS NOT TRUE tests into WHERE clauses.
src/backend/optimizer/util/clauses.c