Still another try at fixing scanjoin_target insertion into parallel plans. The previous code neglected the fact that the scanjoin_target might carry sortgroupref labelings that we need to absorb. Instead, do create_projection_path() unconditionally, and tweak the path's cost estimate after the fact. (I'm now convinced that we ought to refactor the way we account for sometimes not needing a separate projection step, but right now is not the time for that sort of cleanup.)
Problem identified by Amit Kapila, patch by me. Branch ------ master Details ------- http://git.postgresql.org/pg/commitdiff/598aa194af2fb7f294ae4b029494a134a44be333 Modified Files -------------- src/backend/optimizer/plan/planner.c | 39 ++++++++++++++------------- src/test/regress/expected/select_parallel.out | 18 ++++++++++++- src/test/regress/sql/select_parallel.sql | 6 ++++- 3 files changed, 43 insertions(+), 20 deletions(-) -- Sent via pgsql-committers mailing list ([email protected]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers
