From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
Subject: | pgsql: Move pattern selectivity code from selfuncs.c to like_support.c. |
Date: | 2019-02-14 15:52:08 |
Message-ID: | E1guJJ2-0005UI-6t@gemulon.postgresql.org |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-committers |
Move pattern selectivity code from selfuncs.c to like_support.c.
While at it, refactor patternsel() a bit so that it can be used from
the LIKE/regex planner support functions as well. This makes the
planner able to deal equally well with either operator or function
syntax for these operations. I'm not excited about that as a feature
in itself, but it provides a nice model for extensions to follow if
they want such behavior for their operations.
This change localizes the use of pattern_fixed_prefix() and
make_greater_string() so that they no longer need be exported.
(We might get pushback from extensions about that, perhaps,
in which case I'd be inclined to re-export them in a new header
file like_support.h.)
This reduces the bulk of selfuncs.c a fair amount, removing ~1370
lines or about one-sixth of that file; it's still too big, but this
is progress.
Discussion: https://postgr.es/m/24537.1550093915@sss.pgh.pa.us
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/49fa99e54ec0ded180b52a4a14e543702d53e8c9
Modified Files
--------------
src/backend/utils/adt/like_support.c | 1414 +++++++++++++++++++++++++++++++++-
src/backend/utils/adt/selfuncs.c | 1381 +--------------------------------
src/include/utils/selfuncs.h | 33 +-
3 files changed, 1455 insertions(+), 1373 deletions(-)
From | Date | Subject | |
---|---|---|---|
Next Message | Peter Eisentraut | 2019-02-14 16:03:10 | pgsql: Resolve one unconstify use |
Previous Message | Alvaro Herrera | 2019-02-13 23:13:27 | pgsql: Fix portability issues in pg_bitutils |