Commit Graph

35808 Commits

Author SHA1 Message Date
Tom Lane
9f9d9b51f0 Improve pqexpbuffer.c to use modern vsnprintf implementations efficiently.
When using a C99-compliant vsnprintf, we can use its report of the required
buffer size to avoid making multiple loops through the formatting logic.
This is similar to the changes recently made in stringinfo.c, but we can't
use psprintf.c here because in libpq we don't want to exit() on error.
(The behavior pqexpbuffer.c has historically used is to mark the
PQExpBuffer as "broken", ie empty, if it runs into any fatal problem.)

To avoid duplicating code more than necessary, I refactored
printfPQExpBuffer and appendPQExpBuffer to share a subroutine that's
very similar to psprintf.c's pvsnprintf in spirit.
2013-10-25 17:42:26 -04:00
Tom Lane
43fe90f66a Suppress -0 in the C field of lines computed by line_construct_pts().
It's not entirely clear why some PPC machines are generating -0 here, since
the underlying computation should be exactly 0 - 0.  Perhaps there's some
wider-than-nominal-precision calculations happening?  Anyway, the best way
to avoid platform-dependent results seems to be to explicitly reset -0 to
regular zero.
2013-10-25 15:55:15 -04:00
Tom Lane
1f7a47912a Revert "Tweak "line" test to avoid negative zeros on some platforms"
This reverts commit a0a546f0d9.
It seems better to tweak the code to suppress -0 results during
line_construct_pts(), which I'll do in the next commit.
2013-10-25 15:50:31 -04:00
Peter Eisentraut
a0a546f0d9 Tweak "line" test to avoid negative zeros on some platforms 2013-10-25 07:08:40 -04:00
Tom Lane
5e1e47c7c0 Ignore SIGSYS during initdb.
This prevents the recently-added probe for shm_open() from crashing
on platforms that are impolite enough to deliver a signal rather than
returning ENOSYS for an unimplemented kernel call.  At least on the
one known example (HPUX 10.20), ignoring SIGSYS does result in the
desired behavior of getting an ENOSYS error return instead.

Per discussion, we might later wish to do this in the backend as well,
but for now it seems sufficient to do it in initdb.
2013-10-24 21:51:30 -04:00
Tom Lane
3147acd63e Use improved vsnprintf calling logic in more places.
When we are using a C99-compliant vsnprintf implementation (which should be
most places, these days) it is worth the trouble to make use of its report
of how large the buffer needs to be to succeed.  This patch adjusts
stringinfo.c and some miscellaneous usages in pg_dump to do that, relying
on the logic recently added in libpgcommon's psprintf.c.  Since these
places want to know the number of bytes written once we succeed, modify the
API of pvsnprintf() to report that.

There remains near-duplicate logic in pqexpbuffer.c, but since that code
is in libpq, psprintf.c's approach of exit()-on-error isn't appropriate
for use there.  Also note that I didn't bother touching the multitude
of places that call (v)snprintf without any attempt to provide a resizable
buffer.

Release-note-worthy incompatibility: the API of appendStringInfoVA()
changed.  If there's any third-party code that's calling that directly,
it will need tweaking along the same lines as in this patch.

David Rowley and Tom Lane
2013-10-24 21:43:57 -04:00
Heikki Linnakangas
98c50656ca Increase the number of different values used when seeding random().
When a backend process is forked, we initialize the system's random number
generator with srandom(). The seed used is derived from the backend's pid
and the timestamp. However, we only used the microseconds part of the
timestamp, and it was XORed with the pid, so the total range of different
seed values chosen was 0-999999. That's quite limited.

Change the code to also use the seconds part of the timestamp in the seed,
and shift the microseconds so that all 32 bits of the seed are used.

Honza Horak
2013-10-24 17:00:18 +03:00
Heikki Linnakangas
75fdcec145 Improve documentation of random() function.
Move random() and setseed() to a separate table, to have them grouped
together. Also add a notice that random() is not cryptographically secure.

Original patch by Honza Horak, although I didn't use his version.
2013-10-24 15:40:23 +03:00
Heikki Linnakangas
138184adc5 Plug memory leak when reloading config file.
The absolute path to config file was not pfreed. There are probably more
small leaks here and there in the config file reload code and assign hooks,
and in practice no-one reloads the config files frequently enough for it to
be a problem, but this one is trivial enough that might as well fix it.

Backpatch to 9.3 where the leak was introduced.
2013-10-24 15:27:40 +03:00
Heikki Linnakangas
bb598456dc Fix memory leak when an empty ident file is reloaded.
Hari Babu
2013-10-24 14:03:26 +03:00
Heikki Linnakangas
4d6d425ab8 Fix typos in comments. 2013-10-24 11:50:02 +03:00
Robert Haas
5c4dd2cd9a Simplify tab completion rules for views and foreign tables.
Since an increasing number of views and foreign tables are now able
to be updated, complete with any table, view, or foreign table in
the relevant contexts.  This avoids the need to use a complex
query that may be both confusing to end-users and nonperformant
to construct the list of possible completions.

Dean Rasheed, persuant to a complaint from Bernd Helme and a
suggestion from Peter Eisentraut
2013-10-23 13:16:25 -04:00
Heikki Linnakangas
83eb54001c Fix two bugs in setting the vm bit of empty pages.
Use a critical section when setting the all-visible flag on an empty page,
and WAL-logging it. log_newpage_buffer() contains an assertion that it
must be called inside a critical section, and it's the right thing to do
when modifying a buffer anyway.

Also, the page should be marked dirty before calling log_newpage_buffer(),
per the comment in log_newpage_buffer() and src/backend/access/transam/README.

Patch by Andres Freund, in response to my report. Backpatch to 9.2, like
the patch that introduced these bugs (a6370fd9).
2013-10-23 14:24:37 +03:00
Tom Lane
5f1ab46101 Suppress a couple of compiler warnings seen with older gcc versions.
To wit,
bgworker.c: In function `RegisterDynamicBackgroundWorker':
bgworker.c:761: warning: `generation' might be used uninitialized in this function
dsm_impl.c: In function `dsm_impl_op':
dsm_impl.c:197: warning: control reaches end of non-void function

Neither of these represent actual bugs, but we may as well tweak the code
so that more compilers can tell that.  This won't change the generated code
on compilers that do recognize that the cases are unreachable.
2013-10-22 21:31:57 -04:00
Tom Lane
2c66f9924c Replace pg_asprintf() with psprintf().
This eliminates an awkward coding pattern that's also unnecessarily
inconsistent with backend coding.  psprintf() is now the thing to
use everywhere.
2013-10-22 19:40:26 -04:00
Tom Lane
09a89cb5fc Get rid of use of asprintf() in favor of a more portable implementation.
asprintf(), aside from not being particularly portable, has a fundamentally
badly-designed API; the psprintf() function that was added in passing in
the previous patch has a much better API choice.  Moreover, the NetBSD
implementation that was borrowed for the previous patch doesn't work with
non-C99-compliant vsnprintf, which is something we still have to cope with
on some platforms; and it depends on va_copy which isn't all that portable
either.  Get rid of that code in favor of an implementation similar to what
we've used for many years in stringinfo.c.  Also, move it into libpgcommon
since it's not really libpgport material.

I think this patch will be enough to turn the buildfarm green again, but
there's still cosmetic work left to do, namely get rid of pg_asprintf()
in favor of using psprintf().  That will come in a followon patch.
2013-10-22 18:42:13 -04:00
Peter Eisentraut
586a8fc75b Make use of psprintf() in recent changes 2013-10-22 07:04:41 -04:00
Heikki Linnakangas
36f4c7843c Adjust cube.out expected output for new test queries.
Previous commit modified the test case, but I didn't update cube.out
expected output file in previous commit because it was not needed by the
platforms I have easy access to. Buildfarm animal 'dugong', running
"Debian 4.0 icc 10.1.011 ia64", has now gone red because of that, so update
it now.

Also adjust cube_3.out. According to git history, it was added to support
64-bit MinGW. There is no such animal in the buildfarm, so I'm doing this
blindly, but it was added quite recently so maybe someone still cares.
2013-10-22 09:41:38 +03:00
Tom Lane
2885881147 Fix blatantly broken record_image_cmp() logic for pass-by-value fields.
Doesn't anybody here pay attention to compiler warnings?
2013-10-22 00:38:53 -04:00
Heikki Linnakangas
08612f45a0 Extend cube on-disk format to pack points more tightly.
If the lower left and upper right corners of a cube are the same, set a
flag in the cube header, and only store one copy of the coordinates. That
cuts the on-disk size into half for the common case that the cube datatype
is used to represent points rather than boxes.

The new format is backwards-compatible with the old one, so pg_upgrade
still works. However, to get the space savings, the data needs to be
rewritten. A simple VACUUM FULL or REINDEX is not enough, as the old
Datums will just be moved to the new heap/index as is. A pg_dump and
reload, or something similar like casting to text and back, will do the
trick.

This patch deliberately doesn't update all the alternative expected output
files, as I don't have access to machines that produce those outputs. I'm
not sure if they are still relevant, but if they are, the buildfarm will
tell us and produce the diff required to fix it. If none of the buildfarm
animals need them, they should be removed altogether.

Patch by Stas Kelvich.
2013-10-21 22:00:15 +03:00
Peter Eisentraut
a5963efa8f doc: Improve setup for documentation building with FOP
Add a makefile rule for building PDFs with FOP.  Two new build targets
in doc/src/sgml are postgres-A4-fop.pdf and postgres-US-fop.pdf.

Run .fo output through xmllint for reformatting, so that errors are
easier to find.  (The default output has hardly any line breaks, so you
might be looking for an error in column 20000.)

Set some XSLT parameters to optimize for building with FOP.

Remove some redundant or somewhat useless chapterinfo/author
information, because it renders strangely with the FO stylesheet.

Reviewed-by: Álvaro Herrera <alvherre@2ndquadrant.com>
2013-10-21 06:43:08 -04:00
Noah Misch
709170b790 Consistently use unsigned arithmetic for alignment calculations.
This avoids an assumption about the signed number representation.  It is
anticipated to have no functional changes on supported configurations;
many two's complement assumptions remain elsewhere.

Per a suggestion from Andres Freund.
2013-10-20 21:04:52 -04:00
Peter Eisentraut
713a9f210d Add libpgcommon to backend gettext source files
This ought to have been done when libpgcommon was split off from
libpgport.
2013-10-19 13:49:05 -04:00
Peter Eisentraut
07bf70356c Add *.pot to .gitignore 2013-10-19 10:56:52 -04:00
Peter Eisentraut
2e6bc4b806 Move rmtree() from libpgport to libpgcommon
It requires pgfnames() from libpgcommon.
2013-10-19 10:20:51 -04:00
Peter Eisentraut
ba7c5975ad Move pgfnames() from libpgport to libpgcommon
It requires pstrdup() from libpgcommon.
2013-10-18 21:28:15 -04:00
Robert Haas
cab5dc5daf Allow only some columns of a view to be auto-updateable.
Previously, unless all columns were auto-updateable, we wouldn't
inserts, updates, or deletes, or at least not without a rule or trigger;
now, we'll allow inserts and updates that target only the auto-updateable
columns, and deletes even if there are no auto-updateable columns at
all provided the view definition is otherwise suitable.

Dean Rasheed, reviewed by Marko Tiikkaja
2013-10-18 10:35:36 -04:00
Robert Haas
523beaa11b Provide a reliable mechanism for terminating a background worker.
Although previously-introduced APIs allow the process that registers a
background worker to obtain the worker's PID, there's no way to prevent
a worker that is not currently running from being restarted.  This
patch introduces a new API TerminateBackgroundWorker() that prevents
the background worker from being restarted, terminates it if it is
currently running, and causes it to be unregistered if or when it is
not running.

Patch by me.  Review by Michael Paquier and KaiGai Kohei.
2013-10-18 10:23:11 -04:00
Peter Eisentraut
c2316dcda1 Fix for lack of va_copy() on certain Windows versions
Based-on-patch-by: David Rowley <dgrowleyml@gmail.com>
2013-10-18 09:54:50 -04:00
Peter Eisentraut
595a6a0350 Add libpgport to isolationtester on MSVC
From: Asif Naeem <anaeem.it@gmail.com>
2013-10-18 09:54:41 -04:00
Peter Eisentraut
3c093b4ad2 Switch order of libpgport and libpgcommon in MSVC build as well 2013-10-18 09:52:21 -04:00
Robert Haas
ea91a6be89 Remove IRIX port.
Development of IRIX has been discontinued, and support is scheduled
to end in December of 2013.  Therefore, there will be no supported
versions of this operating system by the time PostgreSQL 9.4 is
released.  Furthermore, we have no maintainer for this platform.
2013-10-18 08:14:21 -04:00
Peter Eisentraut
f39418e9b3 Switch dependency order of libpgcommon and libpgport
Continuing 63f32f3416, libpgcommon should
depend on libpgport, but not vice versa.  But wait_result_to_str() in
wait_error.c depends on pstrdup() in libpgcommon.  So move exec.c and
wait_error.c from libpgport to libpgcommon.  Also switch the link order
in the place that's actually used by the failing ecpg builds.

The function declarations have been left in port.h for now.  That should
perhaps be separated sometime.
2013-10-17 22:02:35 -04:00
Peter Eisentraut
ed632ab21e doc: Configure TOC generation in XSLT HTML build
The default table of contents in the XSLT HTML build is much too big and
deep.  Configure it to look more like the one that is currently being
produced by the DSSSL build.
2013-10-17 22:00:27 -04:00
Robert Haas
81051a86bc Remove spinlock support for SINIX, Sun3, and NS32K.
All of these platforms are very much obsolete.

As far as I can determine, the last version of SINIX, later renamed
Reliant, occurred some time between 2002 and 2005.

The last release of SunOS that would run on a sun3 was released in
November of 1991; the last release of OpenBSD which supported that
platform was in 2001.  The highest clock speed of any processor in
the family was 25MHz.

The NS32K (national semiconductor 320xx) architecture was retired
in 1990.

Support can be re-added if a maintainer emerges for any of these
platforms, but it seems unlikely.

Reviewed by Andres Freund.
2013-10-17 12:02:05 -04:00
Andrew Dunstan
bbe4deac1b Return valid json when converting an empty hstore.
Oskari Saarenmaa.
2013-10-17 11:12:48 -04:00
Alvaro Herrera
86029b31e5 Silence compiler warning when SSL not in use
Per Jaime Casanova and Vik Fearing
2013-10-17 11:28:50 -03:00
Bruce Momjian
7778ddc7a2 Allow 5+ digit years for non-ISO timestamp/date strings, where appropriate
Report from Haribabu Kommi
2013-10-16 13:22:55 -04:00
Robert Haas
d41ab71712 initdb: Suppress dynamic shared memory when probing for max_connections.
This might not be the right long-term solution here, but it will
hopefully turn the buildfarm green again.

Oversight noted by Andres Freund
2013-10-16 09:41:03 -04:00
Peter Eisentraut
63f32f3416 Switch order of -lpgport and -lpgcommon
Conceptually, libpgcommon can depend on libpgport, but not the other way
around.  In the past, this might not have mattered, but it's needed now
for asprintf.
2013-10-15 23:03:42 -04:00
Peter Eisentraut
90c7b7d16b doc: Enable book index in XSLT builds
The XSLT toolchain requires an empty <index> element where the index is
supposed to appear.  Add that with conditionals to hide it from the
DSSSL build.
2013-10-15 22:54:36 -04:00
Bruce Momjian
f918c52f65 docs: correct 9.1 and 9.2 release note mention of timeline switch fix
Backpatch through 9.1.

KONDO Mitsumasa
2013-10-15 10:34:05 -04:00
Robert Haas
e515861367 In dsm_impl_windows, don't error out when the segment already exists.
This is the behavior of the other implementations, and the behavior
expected by the callers of this function.

Amit Kapila
2013-10-14 11:48:49 -04:00
Robert Haas
05a0283e7a Fix details missed by dynamic shared memory patch.
Additional documentation update, and a comment fix.

Both issues reported by Amit Kapila.
2013-10-14 08:00:26 -04:00
Peter Eisentraut
382b694175 Translation updates to fix build failures
Now that msgfmt is run with -c by default, older versions of gettext are
complaining about the PO headers Last-Translator and Language-Team
still having their default values.  Newer gettext versions fail to catch
this because of a bug (https://savannah.gnu.org/bugs/?40261), which is
why this hasn't been noticed before.

Copy updated versions of affected translation files from the
pgtranslations repository, were those files have been fixed.
2013-10-13 22:14:26 -04:00
Peter Eisentraut
4aeceb4683 Add asprintf.c
Forgotten in 5b6d08cd29
2013-10-13 21:56:47 -04:00
Peter Eisentraut
d3d3975836 Attempt to fix MSVC build for asprintf addition 2013-10-13 21:55:17 -04:00
Peter Eisentraut
5b6d08cd29 Add use of asprintf()
Add asprintf(), pg_asprintf(), and psprintf() to simplify string
allocation and composition.  Replacement implementations taken from
NetBSD.

Reviewed-by: Álvaro Herrera <alvherre@2ndquadrant.com>
Reviewed-by: Asif Naeem <anaeem.it@gmail.com>
2013-10-13 00:09:18 -04:00
Peter Eisentraut
a53dee43fe Tweak "line" test to avoid platform-specific floating-point output 2013-10-12 21:17:59 -04:00
Kevin Grittner
4cbb646334 Fix several possibly non-portable gaffs in record_image_ops.
Sparc machines in the buildfarm were made happy by the previous
fix, but PowerPC machines still are still failing.  Hopefully this
will cure that.
2013-10-11 13:02:52 -05:00