Don't constrain self-join removal due to PHVs Self-join removal appears to be safe to apply with placeholder variables as long as we handle PlaceHolderVar in replace_varno_walker() and replace relid in phinfo->ph_lateral.
Discussion: https://postgr.es/m/18187-831da249cbd2ff8e%40postgresql.org Author: Richard Guo Reviewed-by: Andrei Lepikhov Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/b5fb6736ed3b6875e2a4ca39d33325147f535137 Modified Files -------------- src/backend/optimizer/plan/analyzejoins.c | 18 ++++---------- src/test/regress/expected/join.out | 39 ++++++++++++++++++++++--------- src/test/regress/sql/join.sql | 10 +++++--- 3 files changed, 39 insertions(+), 28 deletions(-)
