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Mostly these are just comments but there are a few in documentation
and a handful in code and tests. Hopefully this doesn't cause too much
unnecessary pain for backpatching. I relented from some of the most
common like "thru" for that reason. The rest don't seem numerous
enough to cause problems.
Thanks to Kevin Lyda's tool https://pypi.python.org/pypi/misspellings
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Per discussion, this is a more understandable and future-proof way of
exposing the setting to users. On-disk, we can still store it in words,
so as to not break on-disk compatibility with beta1.
Along the way, clean up the code associated with Bloom reloptions.
Provide explicit macros for default and maximum lengths rather than
having magic numbers buried in multiple places in the code. Drop
the adjustBloomOptions() code altogether: it was useless in view of
the fact that reloptions.c already performed default-substitution and
range checking for the options. Rename a couple of macros and types
for more clarity.
Discussion: <23767.1464926580@sss.pgh.pa.us>
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While the version number is automatically updated in the example output,
the other details looked a bit dated.
suggested by mike2.schneider@gmail.com
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Misplaced "]", evidently a thinko in commit 213335c14.
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Léonard Benedetti
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Noted by 星合 拓馬 (HOSHIAI Takuma)
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Scott Wehrenberg
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Takayuki Tsunakawa
Discussion: <0A3221C70F24FB45833433255569204D1F578FC3@G01JPEXMBYT05>
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Oracle recommends using VARCHAR2 not VARCHAR, allegedly because they might
someday change VARCHAR to be spec-compliant about distinguishing null from
empty string. (I'm not holding my breath, though.) Our examples of PL/SQL
code were using VARCHAR, which while not wrong is missing the pedagogical
opportunity to talk about converting Oracle type names to Postgres. So
switch the examples to use VARCHAR2, and add some text about what to do
with common Oracle type names like VARCHAR2 and NUMBER. (There is probably
more to be said here, but those are the ones I'm sure about offhand.)
Per suggestion from rapg12@gmail.com.
Discussion: <20160521140046.22591.24672@wrigleys.postgresql.org>
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Add missing USING BLOOM in example of contrib/bloom
Nikolay Shaplov
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Correct obsolete install instructions, as noted by Daniel Gustafsson.
Clarify the test code's prerequisites.
Discussion: <88E617F2-7721-4C4E-84F4-886A2041C1D0@yesql.se>
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David Johnston pointed out that the original text here had been obsoleted
by SQL:2008, which allowed ORDER BY in subqueries. We could weaken the
text to describe ORDER-BY-in-subqueries as an optional SQL feature that's
possibly unportable; but then the exact same statements would apply to
the alternative it's being compared to (ORDER-BY-in-aggregate-calls).
So really that would be pretty useless; let's just take out the sentence
entirely. Instead, point out the hazard that any extra processing in the
upper query might cause the subquery output order to be destroyed.
Discussion: <CAKFQuwbAX=iO9QbpN7_jr+BnUWm9FYX8WbEPUvG0p+nZhp6TZg@mail.gmail.com>
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Mention it in the Notes section too, per suggestion from David Johnston.
Discussion: <20160520165824.22598.31426@wrigleys.postgresql.org>
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Per bug #14152 from Alejandro Martínez. Back-patch to all supported
branches.
Discussion: <20160520165824.22598.31426@wrigleys.postgresql.org>
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Amit Langote
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From: Alexander Law <exclusion@gmail.com>
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found by David G. Johnston <david.g.johnston@gmail.com>
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From: Martín Marqués <martin@2ndquadrant.com>
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Incorporate some suggestions from David Johnston, and update through today.
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We didn't have any real user documentation about how index-only scans
work or how to design indexes to exploit them. Remedy that.
Per gripe from David Johnston.
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In the documentation for nextval(), point out explicitly that INSERT ...
ON CONFLICT will call nextval() if needed for the insertion case, whether
or not it ends up following the ON CONFLICT path. This seems to be a
matter of some confusion, cf bug #14126, so let's be clear about it.
Also mention the issue in the CREATE SEQUENCE reference page, since that
is another place where people might expect such things to be covered.
Minor wording improvements nearby, as well.
Back-patch to 9.5 where ON CONFLICT was introduced.
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OpenSSL error queue fix no longer needs to be documented under 9.6.
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As usual, the release notes for other branches will be made by cutting
these down, but put them up for community review first.
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Fabien Coelho
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Describe compat_realm = 0 as "disabled" not "enabled", per discussion
with Christian Ullrich. I failed to resist the temptation to do some
other minor copy-editing in the same area.
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Corrections per Jeff Janes, Christian Ullrich, and Daniel Vérité.
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This example missed being updated when we redefined \crosstabview's
argument processing.
Daniel Vérité
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Hash indexes are not WAL-logged, and so do not maintain the LSN of
index pages. Since the "snapshot too old" feature counts on
detecting error conditions using the LSN of a table and all indexes
on it, this makes it impossible to safely do early vacuuming on any
table with a hash index, so add this to the tests for whether the
xid used to vacuum a table can be adjusted based on
old_snapshot_threshold.
While at it, add a paragraph to the docs for old_snapshot_threshold
which specifically mentions this and other aspects of the feature
which may otherwise surprise users.
Problem reported and patch reviewed by Amit Kapila
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Call out the major enhancements in this release as identified by
pgsql-advocacy discussion, and rearrange some of the entries to
make those items more prominent. Other minor improvements per
advice from Vitaly Burovoy, Masahiko Sawada, Peter Geoghegan,
and Andres Freund.
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The similarity of the original names to SQL keywords seems like a bad
idea. Rename them before we're stuck with 'em forever.
In passing, minor code and docs cleanup.
Discussion: <4875.1462210058@sss.pgh.pa.us>
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Sync release notes through today, and incorporate some suggestions
from Robert Haas.
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These functions behave like the backend's least/greatest functions,
not like min/max, so the originally-chosen names invite confusion.
Per discussion, rename to least/greatest.
I also took it upon myself to make them return double if any input is
double. The previous behavior of silently coercing all inputs to int
surely does not meet the principle of least astonishment.
Copy-edit some of the other new functions' documentation, too.
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These are just of beta quality, but we're only at beta ... the section
about parallel query, in particular, could doubtless use more work.
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Somebody added pg_replication_origin, pg_replication_origin_status and
pg_replication_slots to catalogs.sgml without a whole lot of concern for
either alphabetical order or the difference between a table and a view.
Clean up the mess.
Back-patch to 9.5, not so much because this is critical as because if
I don't it will result in a cross-branch divergence in release-9.5.sgml,
which would be a maintenance hazard.
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From: Alexander Law <exclusion@gmail.com>
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From: Alexander Law <exclusion@gmail.com>
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Fix typos, reword some overly general index entries.
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From: Guillaume Lelarge <guillaume@lelarge.info>
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Commit 1bbd52cb9a4aa61a didn't bother with such niceties.
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If we're not going to reject such setups entirely, throwing a WARNING in
check_synchronous_standby_names() is unhelpful, because it will cause the
warning to be logged again every time the postmaster receives SIGHUP.
Per discussion, just remove the warning.
In passing, improve the documentation for synchronous_commit, which had not
gotten the word that now there can be more than one synchronous standby.
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From: Dmitry Igrishin <dmitigr@gmail.com>
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Adjust the way we detect the locale. As a result the minumum Windows
version supported by VS2015 and later is Windows Vista. Add some tweaks
to remove new compiler warnings. Remove documentation references to the
now obsolete msysGit.
Michael Paquier, somewhat edited by me, reviewed by Christian Ullrich.
Backpatch to 9.5
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Commit 989be0810dffd08b added a flex/bison lexer/parser to interpret
synchronous_standby_names. It was done in a pretty crufty way, though,
making assorted end-use sites responsible for calling the parser at the
right times. That was not only vulnerable to errors of omission, but made
it possible that lexer/parser errors occur at very undesirable times,
and created memory leakages even if there was no error.
Instead, perform the parsing once during check_synchronous_standby_names
and let guc.c manage the resulting data. To do that, we have to flatten
the parsed representation into a single hunk of malloc'd memory, but that
is not very hard.
While at it, work a little harder on making useful error reports for
parsing problems; the previous code felt that "synchronous_standby_names
parser returned 1" was an appropriate user-facing error message. (To
be fair, it did also log a syntax error message, but separately from the
GUC problem report, which is at best confusing.) It had some outright
bugs in the face of invalid input, too.
I (tgl) also concluded that we need to restrict unquoted names in
synchronous_standby_names to be just SQL identifiers. The previous coding
would accept darn near anything, which (1) makes the quoting convention
both nearly-unnecessary and formally ambiguous, (2) makes it very hard to
understand what is a syntax error and what is a creative interpretation of
the input as a standby name, and (3) makes it impossible to further extend
the syntax in future without a compatibility break. I presume that we're
intending future extensions of the syntax, else this parsing infrastructure
is massive overkill, so (3) is an important objection. Since we've taken
a compatibility hit for non-identifier names with this change anyway, we
might as well lock things down now and insist that users use double quotes
for standby names that aren't identifiers.
Kyotaro Horiguchi and Tom Lane
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Remove mention of setweight(tsquery) which wasn't included in 9.6. Also
replace old forgotten phrase operator to new one.
Dmitry Ivanov
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