Handle SubPlan cases in find_nonnullable_rels/vars. We can use some variants of SubPlan to deduce that Vars appearing in the testexpr must be non-null. Richard Guo Discussion: https://postgr.es/m/CAMbWs4-jV=199A2Y_6==99dYnpnmaO_Wz_RGkRTTaCB=Pihw2w@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/ff8fa0bf7eb9001f321c2af4bbe9c0f2bd5c1bf8 Modified Files -------------- src/backend/optimizer/util/clauses.c | 34 ++++++++++++++++++++++++++++++++++ src/test/regress/expected/join.out | 28 ++++++++++++++++++++++++++++ src/test/regress/sql/join.sql | 13 +++++++++++++ 3 files changed, 75 insertions(+)
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