| Commit message (Collapse) | Author | Age |
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Fix a couple of typos, add missing filename tags, and add a link to the doc
section on timezone guc.
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Create separate appendixes for contrib extensions and other server
plugins on the one hand, and utility programs on the other. Recast
the documentation of the latter as refentries, so that man pages are
generated.
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This adds the variable COMP_KEYWORD_CASE, which controls in what case
keywords are completed. This is partially to let users configure the
change from commit 69f4f1c3576abc535871c6cfa95539e32a36120f, but it
also offers more behaviors than were available before.
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version-specific files, not the server version.
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Commit 62c7bd31c8878dd45c9b9b2429ab7a12103f3590 had assorted problems, most
visibly that it broke PREPARE TRANSACTION in the presence of session-level
advisory locks (which should be ignored by PREPARE), as per a recent
complaint from Stephen Rees. More abstractly, the patch made the
LockMethodData.transactional flag not merely useless but outright
dangerous, because in point of fact that flag no longer tells you anything
at all about whether a lock is held transactionally. This fix therefore
removes that flag altogether. We now rely entirely on the convention
already in use in lock.c that transactional lock holds must be owned by
some ResourceOwner, while session holds are never so owned. Setting the
locallock struct's owner link to NULL thus denotes a session hold, and
there is no redundant marker for that.
PREPARE TRANSACTION now works again when there are session-level advisory
locks, and it is also able to transfer transactional advisory locks to the
prepared transaction, but for implementation reasons it throws an error if
we hold both types of lock on a single lockable object. Perhaps it will be
worth improving that someday.
Assorted other minor cleanup and documentation editing, as well.
Back-patch to 9.1, except that in the 9.1 branch I did not remove the
LockMethodData.transactional flag for fear of causing an ABI break for
any external code that might be examining those structs.
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The default for the choice attribute of the <arg> element is "opt",
which would normally put the argument inside brackets. But the DSSSL
stylesheets contain a hack that treats <arg> directly inside <group>
specially, so that <group><arg>-x</arg><arg>-y</arg></group> comes out
as [ -x | -y ] rather than [ [-x] | [-y] ], which it would technically
be. But when building man pages, this doesn't work, and so the
command synopses on the man pages contain lots of extra brackets.
By putting choice="opt" or choice="plain" explicitly on every <arg>
and <group> element, we avoid any toolchain dependencies like that,
and it also makes it clearer in the source code what is meant.
In passing, make some small corrections in the documentation about
which arguments are really optional or not.
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Postgres 9.2, and perhaps no existing users either.
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Remove the following ports:
- dgux
- nextstep
- sunos4
- svr4
- ultrix4
- univel
These are obsolete and not worth rescuing. In most cases, there is
circumstantial evidence that they wouldn't work anymore anyway.
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Add more markup in particular so that the command options appear
consistently in monospace in the HTML output.
On the vacuumdb reference page, remove listing all the possible
options in the synopsis. They have become too many now; we have the
detailed options list for that.
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We had changed this from the default bold to monospace for all output
formats, but for man pages, this creates visual inconsistencies, so
revert to the default for man pages.
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This patch adjusts the core statistics views to match the decision already
taken for pg_stat_statements, that values representing elapsed time should
be represented as float8 and measured in milliseconds. By using float8,
we are no longer tied to a specific maximum precision of timing data.
(Internally, it's still microseconds, but we could now change that without
needing changes at the SQL level.)
The columns affected are
pg_stat_bgwriter.checkpoint_write_time
pg_stat_bgwriter.checkpoint_sync_time
pg_stat_database.blk_read_time
pg_stat_database.blk_write_time
pg_stat_user_functions.total_time
pg_stat_user_functions.self_time
pg_stat_xact_user_functions.total_time
pg_stat_xact_user_functions.self_time
The first four of these are new in 9.2, so there is no compatibility issue
from changing them. The others require a release note comment that they
are now double precision (and can show a fractional part) rather than
bigint as before; also their underlying statistics functions now match
the column definitions, instead of returning bigint microseconds.
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This seems more consistent with the pre-existing choices for names of
other statistics columns. Rename assorted internal identifiers to match.
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This spelling seems significantly more readable to me.
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Get rid of the per-column documentation of underlying functions, which did
far more to clutter the view descriptions than it did to be helpful, and
was rather incomplete and typo-ridden anyway. Instead suggest that people
consult the definitions of the standard views to see the underlying
functions.
The older functions for obtaining individual facts about backends are now
somewhat obsoleted by pg_stat_get_activity, which means that they are not
documented by any standard view. So I put that information into a separate
table. (Maybe we should just deprecate them instead?)
In passing, fix a couple more documentation errors.
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Fix a bunch of typos, improve markup, make wording more uniform, rearrange
some material. No substantive changes.
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Display total time and I/O timings in milliseconds, for consistency with
the units used for timings in the core statistics views. The columns
remain of float8 type, so that sub-msec precision is available. (At some
point we will probably want to convert the core views to use float8 type
for the same reason, but this patch does not touch that issue.)
This is a release-note-requiring change in the meaning of the total_time
column. The I/O timing columns are new as of 9.2, so there is no
compatibility impact from redefining them.
Do some minor copy-editing in the documentation, too.
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Get rid of section 8.5.6 (Date/Time Internals), which appears to confuse
people more than it helps, and anyway discussion of Postgres' internal
datetime calculation methods seems pretty out of place here. Instead,
make datatype.sgml just say that we follow the Gregorian calendar (a bit
of specification not previously present anywhere in that chapter :-()
and link to the History of Units appendix for more info. Do some mild
editorialization on that appendix, too, to make it clearer that we are
following proleptic Gregorian calendar rules rather than anything more
historically accurate.
Per a question from Florence Cousin and subsequent discussion in
pgsql-docs.
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Predominant standard is two spaces, so adjust outliers to that.
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Prohibiting this outright would break dumps taken from older versions
that contain such casts, which would create far more pain than is
justified here.
Per report by Jaime Casanova and subsequent discussion.
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Josh Kupershmidt
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Fix typo spotted by Thom Brown, and improve wording in another area
where Thom spotted a typo.
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The original syntax wasn't universally loved, and it didn't allow its
usage in CREATE TABLE, only ALTER TABLE. It now works everywhere, and
it also allows using ALTER TABLE ONLY to add an uninherited CHECK
constraint, per discussion.
The pg_constraint column has accordingly been renamed connoinherit.
This commit partly reverts some of the changes in
61d81bd28dbec65a6b144e0cd3d0bfe25913c3ac, particularly some pg_dump and
psql bits, because now pg_get_constraintdef includes the necessary NO
INHERIT within the constraint definition.
Author: Nikhil Sontakke
Some tweaks by me
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Like with SGML files, using tabs in these files is confusing and
unnecessary.
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Fujii Masao
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Clarify that nrows() is the number of rows processed, versus the
number of rows returned, which can be obtained using len. Also add
tests about that.
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The result object methods colnames() etc. would crash when called
after a command that did not produce a result set. Now they throw an
exception.
discovery and initial patch by Jean-Baptiste Quenot
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Fujii Masao, per discussion on pgsql-hackers
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The output of the new pg_xlog_location_diff function is of type numeric,
since it could theoretically overflow an int8 due to signedness; this
provides a convenient way to format such values.
Fujii Masao, with some beautification by me.
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discussion of hackers list on 2012/3/10 "missing description initdb
manual".
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Etsuro Fujita
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Per mailing list discussion, we would like to keep the bytea functions
parallel to the text functions, so rename bytea_agg to string_agg,
which already exists for text.
Also, to satisfy the rule that we don't want aggregate functions of
the same name with a different number of arguments, add a delimiter
argument, just like string_agg for text already has.
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Christoph Berg
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Thom Brown
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Previously we attempted to throw an error or at least warning for missing
schemas, but this was done inconsistently because of implementation
restrictions (in many cases, GUC settings are applied outside transactions
so that we can't do system catalog lookups). Furthermore, there were
exceptions to the rule even in the beginning, and we'd been poking more
and more holes in it as time went on, because it turns out that there are
lots of use-cases for having some irrelevant items in a common search_path
value. It seems better to just adopt a philosophy similar to what's always
been done with Unix PATH settings, wherein nonexistent or unreadable
directories are silently ignored.
This commit also fixes the documentation to point out that schemas for
which the user lacks USAGE privilege are silently ignored. That's always
been true but was previously not documented.
This is mostly in response to Robert Haas' complaint that 9.1 started to
throw errors or warnings for missing schemas in cases where prior releases
had not. We won't adopt such a significant behavioral change in a back
branch, so something different will be needed in 9.1.
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postgres:// URIs are an attempt to "stop the bleeding" in this general
area that has been said to occur due to external projects adopting their
own syntaxes. The syntaxes supported by this patch:
postgres://[user[:pwd]@][unix-socket][:port[/dbname]][?param1=value1&...]
postgres://[user[:pwd]@][net-location][:port][/dbname][?param1=value1&...]
should be enough to cover most interesting cases without having to
resort to "param=value" pairs, but those are provided for the cases that
need them regardless.
libpq documentation has been shuffled around a bit, to avoid stuffing
all the format details into the PQconnectdbParams description, which was
already a bit overwhelming. The list of keywords has moved to its own
subsection, and the details on the URI format live in another subsection.
This includes a simple test program, as requested in discussion, to
ensure that interesting corner cases continue to work appropriately in
the future.
Author: Alexander Shulgin
Some tweaking by Álvaro Herrera, Greg Smith, Daniel Farina, Peter Eisentraut
Reviewed by Robert Haas, Alexey Klyukin (offlist), Heikki Linnakangas,
Marko Kreen, and others
Oh, it also supports postgresql:// but that's probably just an accident.
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This patch reverts commit 191ef2b407f065544ceed5700e42400857d9270f
and thereby restores the pre-7.3 behavior of EXTRACT(EPOCH FROM
timestamp-without-tz). Per discussion, the more recent behavior was
misguided on a couple of grounds: it makes it hard to get a
non-timezone-aware epoch value for a timestamp, and it makes this one
case dependent on the value of the timezone GUC, which is incompatible
with having timestamp_part() labeled as immutable.
The other behavior is still available (in all releases) by explicitly
casting the timestamp to timestamp with time zone before applying EXTRACT.
This will need to be called out as an incompatible change in the 9.2
release notes. Although having mutable behavior in a function marked
immutable is clearly a bug, we're not going to back-patch such a change.
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It used to point to a top-level page that contains client-side tools as
well. It was hard to find the procedural language there.
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Thom Brown
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