Cosmetic improvements for code related to partitionwise join.
Move have_partkey_equi_join and match_expr_to_partition_keys to
relnode.c, since they're used only there. Refactor
build_joinrel_partition_info to split out the code that fills the
joinrel's partition key lists; this doesn't have any non-cosmetic
impact, but it seems like a useful separation of concerns.
Improve assorted nearby comments.
Amit Langote, with a little further editorialization by me
Discussion: https://postgr.es/m/CA+HiwqG2WVUGmLJqtR0tPFhniO=H=9qQ+Z3L_ZC+Y3-EVQHFGg@mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/0568e7a2a4f133a7c16776bcae92c53fcf247b73
Modified Files
--------------
src/backend/optimizer/path/joinrels.c | 168 --------------------
src/backend/optimizer/util/plancat.c | 14 +-
src/backend/optimizer/util/relnode.c | 279 +++++++++++++++++++++++++++++-----
src/include/nodes/pathnodes.h | 53 ++++---
src/include/optimizer/paths.h | 3 -
5 files changed, 283 insertions(+), 234 deletions(-)
