Horton

Re: row filtering for logical replication

Euler Taveira <euler@eulerto.com>

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From: "Euler Taveira" <euler@eulerto.com>
To: "Peter Smith" <smithpb2250@gmail.com>
Cc: "Amit Kapila" <amit.kapila16@gmail.com>, "Rahila Syed" <rahilasyed90@gmail.com>, "Peter Eisentraut" <peter.eisentraut@enterprisedb.com>, Önder Kalacı <onderkalaci@gmail.com>, japin <japinli@hotmail.com>, "Michael Paquier" <michael@paquier.xyz>, "David Steele" <david@pgmasters.net>, "Craig Ringer" <craig@2ndquadrant.com>, "Tomas Vondra" <tomas.vondra@2ndquadrant.com>, "Amit Langote" <amitlangote09@gmail.com>, "PostgreSQL Hackers" <pgsql-hackers@lists.postgresql.org>
Date: 2021-07-11T23:30:24Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Release cache tuple when no longer needed

  2. Add some additional tests for row filters in logical replication.

  3. Fix one of the tests introduced in commit 52e4f0cd47.

  4. Allow specifying row filters for logical replication of tables.

  5. Move scanint8() to numutils.c

  6. Replace Test::More plans with done_testing

  7. Reduce relcache access in WAL sender streaming logical changes

  8. Small cleanups related to PUBLICATION framework code

  9. Add a view to show the stats of subscription workers.

  10. Allow publishing the tables of schema.

  11. Doc: improve documentation of CREATE/ALTER SUBSCRIPTION.

  12. Add PublicationTable and PublicationRelInfo structs

  13. Remove unused argument "txn" in maybe_send_schema().

  14. Add prepare API support for streaming transactions in logical replication.

  15. Unify PostgresNode's new() and get_new_node() methods

  16. Use l*_node() family of functions where appropriate

  17. Add support for prepared transactions to built-in logical replication.

  18. Restore the portal-level snapshot after procedure COMMIT/ROLLBACK.

  19. Rename a parse node to be more general

  20. Remove unused column atttypmod from initial tablesync query

  21. SEARCH and CYCLE clauses

On Sun, Jul 11, 2021, at 4:39 PM, Euler Taveira wrote:
> with cache (v18)
> -----------------------
> 
> mean:           0.63 us
> stddev:         1.07 us
> median:         0.55 us
> min-max:        [0.29 .. 844.87] us
> percentile(99): 1.38 us
> mode:           0.41 us
> 
> It represents -57%. It is a really good optimization for just a few extra lines
> of code.
cfbot seems to be unhappy with v18 on some of the hosts. Cirrus/FreeBSD failed
in the test 010_truncate. It also failed in a Cirrus/Linux box. I failed to
reproduce in my local FreeBSD box. Since it passes appveyor and Cirrus/macos,
it could probably be a transient issue.

$ uname -a
FreeBSD freebsd12 12.2-RELEASE FreeBSD 12.2-RELEASE r366954 GENERIC  amd64
$ PROVE_TESTS="t/010_truncate.pl" gmake check
gmake -C ../../../src/backend generated-headers
gmake[1]: Entering directory '/usr/home/euler/pglr-row-filter-v17/src/backend'
gmake -C catalog distprep generated-header-symlinks
gmake[2]: Entering directory '/usr/home/euler/pglr-row-filter-v17/src/backend/catalog'
gmake[2]: Nothing to be done for 'distprep'.
gmake[2]: Nothing to be done for 'generated-header-symlinks'.
gmake[2]: Leaving directory '/usr/home/euler/pglr-row-filter-v17/src/backend/catalog'
gmake -C utils distprep generated-header-symlinks
gmake[2]: Entering directory '/usr/home/euler/pglr-row-filter-v17/src/backend/utils'
gmake[2]: Nothing to be done for 'distprep'.
gmake[2]: Nothing to be done for 'generated-header-symlinks'.
gmake[2]: Leaving directory '/usr/home/euler/pglr-row-filter-v17/src/backend/utils'
gmake[1]: Leaving directory '/usr/home/euler/pglr-row-filter-v17/src/backend'
rm -rf '/home/euler/pglr-row-filter-v17'/tmp_install
/bin/sh ../../../config/install-sh -c -d '/home/euler/pglr-row-filter-v17'/tmp_install/log
gmake -C '../../..' DESTDIR='/home/euler/pglr-row-filter-v17'/tmp_install install >'/home/euler/pglr-row-filter-v17'/tmp_install/log/install.log 2>&1
gmake -j1  checkprep >>'/home/euler/pglr-row-filter-v17'/tmp_install/log/install.log 2>&1
rm -rf '/usr/home/euler/pglr-row-filter-v17/src/test/subscription'/tmp_check
/bin/sh ../../../config/install-sh -c -d '/usr/home/euler/pglr-row-filter-v17/src/test/subscription'/tmp_check
cd . && TESTDIR='/usr/home/euler/pglr-row-filter-v17/src/test/subscription' PATH="/home/euler/pglr-row-filter-v17/tmp_install/home/euler/pgrf18/bin:$PATH" LD_LIBRARY_PATH="/home/euler/pglr-row-filter-v17/tmp_install/home/euler/pgrf18/lib" LD_LIBRARY_PATH_RPATH=1 PGPORT='69999' PG_REGRESS='/usr/home/euler/pglr-row-filter-v17/src/test/subscription/../../../src/test/regress/pg_regress' /usr/local/bin/prove -I ../../../src/test/perl/ -I .  t/010_truncate.pl
t/010_truncate.pl .. ok    
All tests successful.
Files=1, Tests=14,  5 wallclock secs ( 0.02 usr  0.00 sys +  1.09 cusr  0.99 csys =  2.10 CPU)
Result: PASS


--
Euler Taveira
EDB   https://www.enterprisedb.com/