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Reviewed by David Steele and Justin Pryzby
Discussion: http://postgr.es/m/CA+TgmoafqboATDSoXHz8VLrSwK_MDhjthK4hEpYjqf9_1Fmczw%40mail.gmail.com
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Run pgindent, pgperltidy, and reformat-dat-files.
I manually fixed a couple of comments that pgindent uglified.
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Discussion: https://postgr.es/m/20220506234924.6mxxotl3xl63db3l@alap3.anarazel.de
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Compression option handling (level, algorithm or even workers) can be
used across several parts of the system and not only base backups.
Structures, objects and routines are renamed in consequence, to remove
the concept of base backups from this part of the code making this
change straight-forward.
pg_receivewal, that has gained support for LZ4 since babbbb5, will make
use of this infrastructure for its set of compression options, bringing
more consistency with pg_basebackup. This cleanup needs to be done
before releasing a beta of 15. pg_dump is a potential future target, as
well, and adding more compression options to it may happen in 16~.
Author: Michael Paquier
Reviewed-by: Robert Haas, Georgios Kokolatos
Discussion: https://postgr.es/m/YlPQGNAAa04raObK@paquier.xyz
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0ad8032 and 4e34747 are at the origin of that. Julien has found the one
in parse_jsontable.c, while I have spotted the rest.
Author: Julien Rouhaud, Michael Paquier
Discussion: https://postgr.es/m/20220411060838.ftnzyvflpwu6f74w@jrouhaud
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Commit ffd53659c46a54a6978bcb8c4424c1e157a2c0f1 messed up the
mechanism that was being used to pass parameters to LogStreamerMain()
on Windows. It worked on Linux because only Windows was using threads.
Repair by moving the additional parameters added by that commit into
the 'logstreamer_param' struct.
Along the way, fix a compiler warning on builds without HAVE_LIBZ.
Discussion: http://postgr.es/m/CA+TgmoY5=AmWOtMj3v+cySP2rR=Bt6EGyF_joAq4CfczMddKtw@mail.gmail.com
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There are more compression parameters that can be specified than just
an integer compression level, so rename the new COMPRESSION_LEVEL
option to COMPRESSION_DETAIL before it gets released. Introduce a
flexible syntax for that option to allow arbitrary options to be
specified without needing to adjust the main replication grammar,
and common code to parse it that is shared between the client and
the server.
This commit doesn't actually add any new compression parameters,
so the only user-visible change is that you can now type something
like pg_basebackup --compress gzip:level=5 instead of writing just
pg_basebackup --compress gzip:5. However, it should make it easy to
add new options. If for example gzip starts offering fries, we can
support pg_basebackup --compress gzip:level=5,fries=true for the
benefit of users who want fries with that.
Along the way, this fixes a few things in pg_basebackup so that the
pg_basebackup can be used with a server-side compression algorithm
that pg_basebackup itself does not understand. For example,
pg_basebackup --compress server-lz4 could still succeed even if
only the server and not the client has LZ4 support, provided that
the other options to pg_basebackup don't require the client to
decompress the archive.
Patch by me. Reviewed by Justin Pryzby and Dagfinn Ilmari Mannsåker.
Discussion: http://postgr.es/m/CA+TgmoYvpetyRAbbg1M8b3-iHsaN4nsgmWPjOENu5-doHuJ7fA@mail.gmail.com
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Apparently, this is needed to avoid warnings on MVCC.
David Rowley
Discussion: http://postgr.es/m/CAApHDvosHkgyo_PZs7CSB4Kgs2ey4FdmFpcK0N_QOci9DJ=wnw@mail.gmail.com
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pg_basebackup's --compression option now lets you write either
"client-gzip" or "server-gzip" instead of just "gzip" to specify
where the compression should be performed. If you write simply
"gzip" it's taken to mean "client-gzip" unless you also use
--target, in which case it is interpreted to mean "server-gzip",
because that's the only thing that makes any sense in that case.
To make this work, the BASE_BACKUP command now takes new
COMPRESSION and COMPRESSION_LEVEL options.
At present, pg_basebackup cannot decompress .gz files, so
server-side compression will cause a failure if (1) -Ft is not
used or (2) -R is used or (3) -D- is used without --no-manifest.
Along the way, I removed the information message added by commit
5c649fe153367cdab278738ee4aebbfd158e0546 which occurred if you
specified no compression level and told you that the default level
had been used instead. That seemed like more output than most
people would want.
Also along the way, this adds a check to the server for
unrecognized base backup options. This repairs a bug introduced
by commit 0ba281cb4bf9f5f65529dfa4c8282abb734dd454.
This commit also adds some new test cases for pg_verifybackup.
They take a server-side backup with and without compression, and
then extract the backup if we have the OS facilities available
to do so, and then run pg_verifybackup on the extracted
directory. That is a good test of the functionality added by
this commit and also improves test coverage for the backup target
patch (commit 3500ccc39b0dadd1068a03938e4b8ff562587ccc) and for
pg_verifybackup itself.
Patch by me, with a bug fix by Jeevan Ladhe. The patch set of which
this is a part has also had review and/or testing from Tushar Ahuja,
Suraj Kharage, Dipesh Pandit, and Mark Dilger.
Discussion: http://postgr.es/m/CA+Tgmoa-ST7fMLsVJduOB7Eub=2WjfpHS+QxHVEpUoinf4bOSg@mail.gmail.com
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