Don't pass down nonnullable_vars while reducing outer joins. We weren't actually using the passed-down list for anything, other than computing the new value to be passed down further. I (tgl) probably had the idea that we'd need this data eventually; but no use-case has emerged in a good long while, so let's just stop expending useless cycles here.
Richard Guo Discussion: https://postgr.es/m/CAMbWs48KLy9aBb=sz5monmnqacghaw_jtgwlcgoe_umw7s6...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/b0b72c64a0ce7bf5dd78a80b33d85c89c943ad0d Modified Files -------------- src/backend/optimizer/prep/prepjointree.c | 33 ++++++------------------------- 1 file changed, 6 insertions(+), 27 deletions(-)
