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Per discussion, this seems like a more consistent choice of name.
Fabrízio de Royes Mello, after a suggestion by Peter Eisentraut;
some additional documentation wordsmithing by me
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Document existence operator adequately; fix obsolete claim that no
Unicode-escape semantic checks happen on input (it's still true for
json, but not for jsonb); improve examples; assorted wordsmithing.
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It takes two arguments, not one.
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I started out with the intention of just fixing the info about the jsonb
operator classes, but soon found myself copy-editing most of the JSON
material. Hopefully it's more readable now.
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Back in 8.3, we installed permissions checks in these functions (see
commits 8bc225e7990a and cc26599b7206). But we forgot to document that
anywhere in the user-facing docs; it did get mentioned in the 8.3 release
notes, but nobody's looking at that any more. Per gripe from Suya Huang.
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Per discussion, the old value of 128MB is ridiculously small on modern
machines; in fact, it's not even any larger than the default value of
shared_buffers, which it certainly should be. Increase to 4GB, which
is unlikely to be any worse than the old default for anyone, and should
be noticeably better for most. Eventually we might have an autotuning
scheme for this setting, but the recent attempt crashed and burned,
so for now just do this.
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This reverts commit ee1e5662d8d8330726eaef7d3110cb7add24d058, as well as
a remarkably large number of followup commits, which were mostly concerned
with the fact that the implementation didn't work terribly well. It still
doesn't: we probably need some rather basic work in the GUC infrastructure
if we want to fully support GUCs whose default varies depending on the
value of another GUC. Meanwhile, it also emerged that there wasn't really
consensus in favor of the definition the patch tried to implement (ie,
effective_cache_size should default to 4 times shared_buffers). So whack
it all back to where it was. In a followup commit, I'll do what was
recently agreed to, which is to simply change the default to a higher
value.
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The previous behavior was to restart immediately, which was generally
viewed as less useful.
Petr Jelinek, with some adjustments by me.
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The main problem is that DocBook SGML allows indexterm elements just
about everywhere, but DocBook XML is stricter. For example, this common
pattern
<varlistentry>
<indexterm>...</indexterm>
<term>...</term>
...
</varlistentry>
needs to be changed to something like
<varlistentry>
<term>...<indexterm>...</indexterm></term>
...
</varlistentry>
See also bb4eefe7bf518e42c73797ea37b033a5d8a8e70a.
There is currently nothing in the build system that enforces that things
stay valid, because that requires additional tools and will receive
separate consideration.
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Report by Amit Langote
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Etsuro Fujita
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Thomas Reiss, with changes to the catalog_xmin language by me.
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Commit a73018392636ce832b09b5c31f6ad1f18a4643ea created rather a mess by
putting dependencies on backend-only include files into include/common.
We really shouldn't do that. To clean it up:
* Move TABLESPACE_VERSION_DIRECTORY back to its longtime home in
catalog/catalog.h. We won't consider this symbol part of the FE/BE API.
* Push enum ForkNumber from relfilenode.h into relpath.h. We'll consider
relpath.h as the source of truth for fork numbers, since relpath.c was
already partially serving that function, and anyway relfilenode.h was
kind of a random place for that enum.
* So, relfilenode.h now includes relpath.h rather than vice-versa. This
direction of dependency is fine. (That allows most, but not quite all,
of the existing explicit #includes of relpath.h to go away again.)
* Push forkname_to_number from catalog.c to relpath.c, just to centralize
fork number stuff a bit better.
* Push GetDatabasePath from catalog.c to relpath.c; it was rather odd
that the previous commit didn't keep this together with relpath().
* To avoid needing relfilenode.h in common/, redefine the underlying
function (now called GetRelationPath) as taking separate OID arguments,
and make the APIs using RelFileNode or RelFileNodeBackend into macro
wrappers. (The macros have a potential multiple-eval risk, but none of
the existing call sites have an issue with that; one of them had such a
risk already anyway.)
* Fix failure to follow the directions when "init" fork type was added;
specifically, the errhint in forkname_to_number wasn't updated, and neither
was the SGML documentation for pg_relation_size().
* Fix tablespace-path-too-long check in CreateTableSpace() to account for
fork-name component of maximum-length pathnames. This requires putting
FORKNAMECHARS into a header file, but it was rather useless (and
actually unreferenced) where it was.
The last couple of items are potentially back-patchable bug fixes,
if anyone is sufficiently excited about them; but personally I'm not.
Per a gripe from Christoph Berg about how include/common wasn't
self-contained.
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Etsuro Fujita
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Before 9.4, such an aggregate couldn't be declared, because its final
function would have to have polymorphic result type but no polymorphic
argument, which CREATE FUNCTION would quite properly reject. The
ordered-set-aggregate patch found a workaround: allow the final function
to be declared as accepting additional dummy arguments that have types
matching the aggregate's regular input arguments. However, we failed
to notice that this problem applies just as much to regular aggregates,
despite the fact that we had a built-in regular aggregate array_agg()
that was known to be undeclarable in SQL because its final function
had an illegal signature. So what we should have done, and what this
patch does, is to decouple the extra-dummy-arguments behavior from
ordered-set aggregates and make it generally available for all aggregate
declarations. We have to put this into 9.4 rather than waiting till
later because it slightly alters the rules for declaring ordered-set
aggregates.
The patch turned out a bit bigger than I'd hoped because it proved
necessary to record the extra-arguments option in a new pg_aggregate
column. I'd thought we could just look at the final function's pronargs
at runtime, but that didn't work well for variadic final functions.
It's probably just as well though, because it simplifies life for pg_dump
to record the option explicitly.
While at it, fix array_agg() to have a valid final-function signature,
and add an opr_sanity test to notice future deviations from polymorphic
consistency. I also marked the percentile_cont() aggregates as not
needing extra arguments, since they don't.
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This was broken in 26cd1d7d9513b2b490efc746551ec5a786b56212.
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Amit Langote
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Report by Andrew Dunstan
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Patch by Amit Langote
Report by
Backpatch through
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Patch by Sehrope Sarkuni
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Patch by Rajeev rastogi
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Patch by Fujii Masao
Report by Emanuel Calvo
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Also update regression tests
Patch by Michael Paquier
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Now that we have accumulated two different "replication slot" concepts,
make the index entries consistent.
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Report by Alexey Bashtanov
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Report by Craig Ringer
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Mention impossibility of moving tablespaces, backing them up
independently, or the inadvisability of placing them on temporary
file systems.
Patch by Craig Ringer, adjustments by Ian Lawrence Warwick and me
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Previously, these functions treated "" optin values as defaults in some
ways, but not in others, like when comparing to .pgpass. Also, add
documentation to clarify that now "" and NULL use defaults, like
PQsetdbLogin() has always done.
BACKWARD INCOMPATIBILITY
Patch by Adrian Vondendriesch, docs by me
Report by Jeff Janes
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Document problems when disconnection causes loss of hot_standby_feedback
and suggest adjusting max_standby_archive_delay and
max_standby_streaming_delay.
Initial patch by Marko Tiikkaja, adjustments by me
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Now that EXPLAIN also outputs a "planning time" measurement, the use of
"total" here seems rather confusing: it sounds like it might include the
planning time which of course it doesn't. Majority opinion was that
"execution time" is a better label, so we'll call it that.
This should be noted as a backwards incompatibility for tools that examine
EXPLAIN ANALYZE output.
In passing, I failed to resist the temptation to do a little editing on the
materialized-view example affected by this change.
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In psql, both stdin and stdout must be terminals to get a client
encoding of 'auto'.
Patch by Albe Laurenz
Backpatch to 9.3.
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Patch by Fujii Masao
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Document abrupt streaming client disconnection might leave slots in use,
so max_wal_senders should be slightly higher than needed to allow for
immediate reconnection.
Per mention by Magnus
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These are natural complements to the functions added by commit
0886fc6a5c75b294544263ea979b9cf6195407d9, but they weren't included
in the original patch for some reason. Add them.
Patch by me, per a complaint by Tom Lane. Review by Tatsuo
Ishii.
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Report from rudolf <stu3.1@eq.cz>
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In psql \d+, display oids only when they exist, and display replication
identity only when it is non-default. Also document the defaults for
replication identity for system and non-system tables. Update
regression output.
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Add vacuumdb option --analyze-in-stages which runs ANALYZE three times
with different configuration settings, adopting the logic from the
analyze_new_cluster.sh script that pg_upgrade generates. That way,
users of pg_dump/pg_restore can also use that functionality.
Change pg_upgrade to create the script so that it calls vacuumdb instead
of implementing the logic itself.
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Reviewed-by: Pavel Stěhule <pavel.stehule@gmail.com>
Reviewed-by: Erik Rijkers <er@xs4all.nl>
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