Cosmetic improvements for code related to partitionwise join.

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 0568e7a2a4f133a7c16776bcae92c53fcf247b73
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2020-04-03T21:00:35Z
Releases: 13.0
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

Files

Discussion