git.postgresql.org Git - postgresql.git/log
Update bitmap index entries:
< * Allow the creation of bitmap indexes which can be quickly combined
< with other bitmap indexes
> * Allow non-bitmap indexes to be combined by creating bitmaps in memory
259,
261c258,259
< combined. Such indexes could be more compact if there are few unique
< value. Also, perhaps they can be lossy requiring a scan of the heap page
< to find matching rows.
> combined. They can index by tid or can be lossy requiring a scan of the
> heap page to find matching rows.
263c261,262
< * Allow non-bitmap indexes to be combined
> * Allow the creation of on-disk bitmap indexes which can be quickly
> combined with other bitmap indexes
265,
266c264
< Do lookups on non-bitmap indexes and create bitmaps in memory that can be
< combined with other indexes.
> Such indexes could be more compact if there are few unique value.
Neil Conway [Thu, 4 Nov 2004 09:12:35 +0000 (09:12 +0000)]
Fix build break, per report from Kris Jurka. Rename README to README.mysql,
for consistency.
Neil Conway [Thu, 4 Nov 2004 06:09:26 +0000 (06:09 +0000)]
Contrib build fixes:
- add some additional files to the dbmirror install (approved by
ssinger)
- add a makefile for contrib/mysql, and add mysql to the list of
contribs build by default
- use xml2-config to pickup -I flags for libxml2 in contrib/xml and
contrib/xml2
Original work from Martin Pitt of Debian, minor cleanups by Neil
Conway.
Update:
< * Use bitmaps to combine existing indexes [performance]
> * Allow the creation of bitmap indexes which can be quickly combined
> with other bitmap indexes
255,
257c256,266
< Bitmap indexes allow single indexed columns to be combined to
< dynamically create a composite index to match a specific query. Each
< index is a bitmap, and the bitmaps are AND'ed or OR'ed to be combined.
> Bitmap indexes index single columns that can be combined with other bitmap
> indexes to dynamically create a composite index to match a specific query.
> Each index is a bitmap, and the bitmaps are bitwise AND'ed or OR'ed to be
> combined. Such indexes could be more compact if there are few unique
> value. Also, perhaps they can be lossy requiring a scan of the heap page
> to find matching rows.
>
> * Allow non-bitmap indexes to be combined
>
> Do lookups on non-bitmap indexes and create bitmaps in memory that can be
> combined with other indexes.
Honor TMPDIR.
Add the script name to the tmp directory name.
Move trap up now that the dir is more unique.
Move trap to after the directory is created.
Create temporary files securely.
Update tablespace temp usage item:
< This perhaps should use a round-robin allocation system where several
< tablespaces are used in a cycle. The cycle pointer should be global.
> It could start with a random tablespace from a supplied list and cycle
> through the list.
Add idea on auto-cluster:
< store heap rows in hashed groups.
> store heap rows in hashed groups, perhaps using a user-supplied
> hash function.
Add idea on auto-cluster:
< automatically access the heap data too.
> automatically access the heap data too. A third idea would be to
> store heap rows in hashed groups.
Neil Conway [Wed, 3 Nov 2004 07:38:08 +0000 (07:38 +0000)]
Don't create $DESTDIR/include/internal/lib, as it is no longer used.
Tab completion for CREATE TABLESPACE arguments. Patch by Joachim Wieland.
Update:
< * Add a GUC variable to control the tablespace for temporary objects
> * Add a GUC variable to control the tablespace for temporary objects and
> sort files
>
> This perhaps should use a round-robin allocation system where several
> tablespaces are used in a cycle. The cycle pointer should be global.
>
Translation updates
Translation updates
Move pthread.h test up to use PTHREAD_CFLAGS.
Kris Jurka
Add comment to postc that get_progname() will call exit if it
can't strdup().
Add comment about memory failure of get_progname exiting the postmaster:
exit(1); /* This could exit the postmaster */
Tom Lane [Mon, 1 Nov 2004 22:00:30 +0000 (22:00 +0000)]
timestamptz_trunc() should only recalculate the timezone when truncating
to DAY precision or coarser; leave the timezone alone when precision is
HOUR or less. This avoids surprises for inputs near a DST transition
time, as per example from Matthew Gabeler-Lee. (The only reason we
recalculate at all is so that outputs that are supposed to represent
days will come out as local midnight, and that's not relevant for sub-day
precision.)
Tom Lane [Mon, 1 Nov 2004 21:34:44 +0000 (21:34 +0000)]
Invent pg_next_dst_boundary() and rewrite DetermineLocalTimeZone() to
use it, as per my proposal of yesterday. This gives us a means of
determining the zone offset to impute to an unlabeled timestamp that
is both efficient and reliable, unlike all our previous tries involving
mktime() and localtime(). The behavior for invalid or ambiguous times
at a DST transition is fixed to be really and truly "assume standard
time", fixing a bug that has come and gone repeatedly but was back
again in 7.4. (There is some ongoing discussion about whether we should
raise an error instead, but for the moment I'll make it do what it was
previously intended to do.)
That's just the lovely way windows handles a "segfault". Gotta be really
interesting for MS to catch all those dumps...
Anyway. Oops. Seems I ran my regression tests with the old psql, and
just managed to update the backend, when I tested that patch. Turns out
there are codepaths where we'd access the Critical Section before it was
initialized. Attached patch breaks the initializeation off to a separate
part and adds that one to a much earlier position in the program.
Magnus Hagander
Update comment to point to proper file.
Dave Cramer [Mon, 1 Nov 2004 13:17:12 +0000 (13:17 +0000)]
fixed bug in segfault REVOKE statement
Neil Conway [Mon, 1 Nov 2004 11:11:13 +0000 (11:11 +0000)]
Trivial fixes for English grammar in contrib/btree_gist and contrib/rtree_gist
documentation.
Adjust use of sizeof(EXE).
Clarify coding of .exe patch
Update:
< * Add a GUC variable to control temporary and TOAST tablespace usage
> * Add a GUC variable to control the tablespace for temporary objects
Add:
> * Add a GUC variable to control temporary and TOAST tablespace usage
Tom Lane [2004年10月31日 19:14:16 +0000 (19:14 +0000)]
Use psql -q option instead of 2>/dev/null during first invocation
of psql; this should make it easier to diagnose client-side problems,
such as library version mismatch. Also, consistently use -X option
to avoid problems from weird .psqlrc settings.
Tom Lane [2004年10月30日 23:11:27 +0000 (23:11 +0000)]
Invent a new, more thread-safe version of PQrequestCancel, called PQcancel.
Use this new function in psql. Implement query cancellation in psql for
Windows. Code by Magnus Hagander, documentation and minor editorialization
by Tom Lane.
Tom Lane [2004年10月30日 20:53:06 +0000 (20:53 +0000)]
I found a corner case in which it is possible for RI_FKey_check's call
of HeapTupleSatisfiesItself() to trigger a hint-bit update on the tuple:
if the row was updated or deleted by a subtransaction of my own transaction
that was later rolled back. This cannot occur in pre-8.0 of course, so
the hint-bit patch applied a couple weeks ago is OK for existing releases.
But for 8.0 it seems we had better fix things so that RI_FKey_check can
pass the correct buffer number to HeapTupleSatisfiesItself. Accordingly,
add fields to the TriggerData struct to carry the buffer ID(s) for the
old and new tuple(s). There are other possible solutions but this one
seems cleanest; it will allow other AFTER-trigger functions to safely
do tqual.c calls if they want to. Put new fields at end of struct so
that there is no API breakage.
Tom Lane [2004年10月30日 20:44:43 +0000 (20:44 +0000)]
Change COMMIT back to the old behavior of emitting command tag COMMIT,
not ROLLBACK, for the case of COMMIT outside a transaction block.
Alvaro Herrera
Translation update
Tom Lane [2004年10月29日 22:19:53 +0000 (22:19 +0000)]
Rearrange order of pre-commit operations: must close cursors before doing
ON COMMIT actions. Per bug report from Michael Guerin.
Tom Lane [2004年10月29日 19:40:33 +0000 (19:40 +0000)]
Fix broken example for PREPARE.
No need to set errorMessage length --- already set in goto target.
Tom Lane [2004年10月29日 19:18:22 +0000 (19:18 +0000)]
Fix failure to think clearly about encoding conversion errors in COPY.
We can't regurgitate the unconverted string as I first thought, because
the elog.c mechanisms will assume the error message data is in the server
encoding and attempt a reverse conversion. Eventually it might be worth
providing a short-circuit path to support this, but for now the simplest
solution is to abandon trying to report back the line contents after a
conversion failure. Per bug report from Sil Lee, 27-Oct-2004.
Set errorMessage length in PQrequestCancel() in all places.
Improvements to the CREATE DATABASE reference page's description of the
TABLESPACE clause.
Minor improvements to the tablespace documentation.
Tom Lane [2004年10月29日 00:16:08 +0000 (00:16 +0000)]
Add DEBUG1-level logging of checkpoint start and end. Also, reduce the
'recycled log files' and 'removed log files' messages from DEBUG1 to
DEBUG2, replacing them with a count of files added/removed/recycled in
the checkpoint end message, as per suggestion from Simon Riggs.
Tom Lane [2004年10月28日 22:31:11 +0000 (22:31 +0000)]
This makes dblink pass its installcheck test on platforms where
snprintf(data, len, %s, NULL) crash.
The code was trying to find a connection by name when it already had an
unnamed connection and did not have a name to search with.
Kris Jurka
Tom Lane [2004年10月28日 22:09:31 +0000 (22:09 +0000)]
Code cleanup in dirmod.c. Andrew Dunstan, some further mods by moi.
Tom Lane [2004年10月28日 18:55:08 +0000 (18:55 +0000)]
Fix to_number for the case of a trailing S.
Karel Zak
Translation update
Translation updates
Translation updates
Use AllocateFile(), FreeFile() and palloc() rather than fopen(), fclose()
and malloc() in pgstat.c, respectively. This simplifies error recovery,
as well as being more consistent with the rest of the backend.
Tom Lane [2004年10月28日 00:39:59 +0000 (00:39 +0000)]
On Windows, force a checkpoint just before dropping a database's physical
files and directories. This ensures that the bgwriter will close any open
file references it is holding for files therein, which is needed for the
rmdir() to succeed. Andrew Dunstan and Tom Lane.
Have pg_ctl status always output to stdout, even stopped status, not stderr.
Fix Cygwin compile for timezone.
Tom Lane [2004年10月27日 18:09:41 +0000 (18:09 +0000)]
When displaying a Var that is a reference to a column of an unnamed join,
try to display it as a reference to the underlying column instead. This
is a legitimate substitution (it wouldn't be for a named join) and it
fixes some cases where the display would otherwise be ambiguous. Per
example from Sim Zacks.
Canonicalize Win32 path coming in from pg_ctl -D, idea from Magnus.
Translation update
Add a missing dependency: the "install" target requires "all" to have
been built before it. Per report from Kris Jurka.
New translation
Translation updates
Translation update
Translation updates
Translation updates
Translation updates
Trivial fix: clarify a comment.
Update German FAQ.
Ian Barwick
Add reminder to update copyright in sgml file.
Tom Lane [2004年10月26日 22:16:12 +0000 (22:16 +0000)]
Document IS DISTINCT FROM in a more obvious place, and add some more
index entries for IS-foo constructs.
Add:
> * Allow TIMESTAMP WITH TIME ZONE to store the original timezone
> information, either by name or offset from UTC
Update Russian FAQ.
Viktor Vislobokov
Tom Lane [2004年10月26日 16:05:03 +0000 (16:05 +0000)]
Make heap_fetch API more consistent by having the buffer remain pinned
in all cases when keep_buf = true. This allows ANALYZE's inner loop to
use heap_release_fetch, which saves multiple buffer lookups for the same
page and avoids overestimation of cost by the vacuum cost mechanism.
Tom Lane [2004年10月25日 15:42:02 +0000 (15:42 +0000)]
In the new dispensation where REINDEX doesn't take exclusive lock on
the parent table, it's essential that all index accesses take some kind
of lock on the index. I had missed vacuumlazy.c :-( ...
Update copyright information in documentation. Also, add a note
to RELEASE_CHANGES so that this is not forgotten in the future.
Remove three unnecessary casts from a pointer type to char * when calling
pfree().
Fix tyop in comment.
Tom Lane [2004年10月25日 03:08:29 +0000 (03:08 +0000)]
Make error message more verbose, in hopes of avoiding misunderstandings
such as bug #1293.
Tom Lane [2004年10月25日 02:30:29 +0000 (02:30 +0000)]
Fix some more 'old-style parameter declaration' warnings.
Tom Lane [2004年10月25日 02:15:02 +0000 (02:15 +0000)]
Fix a bunch of 'old-style parameter declaration' warnings induced by
writing 'foo()' rather than 'foo(void)'.
Modify hash_create() to elog(ERROR) if an error occurs, rather than
returning a NULL pointer (some callers remembered to check the return
value, but some did not -- it is safer to just bail out).
Also, cleanup pgstat.c to use elog(ERROR) rather than elog(LOG) followed
by exit().
make sure we tag configure.in as beta4 as well ...
Tom Lane [2004年10月24日 22:52:04 +0000 (22:52 +0000)]
Update for 8.0: pg_tablespace is now also a shared catalog.
Tom Lane [2004年10月24日 22:43:56 +0000 (22:43 +0000)]
Add note that REINDEX takes a weaker lock than it used to.
Tom Lane [2004年10月24日 22:11:37 +0000 (22:11 +0000)]
Add comparison file for exp-three-digits formatting.
Tom Lane [2004年10月24日 22:09:33 +0000 (22:09 +0000)]
Adjust message to not be misleading on Windows.
Andrew Dunstan
Tom Lane [2004年10月24日 22:08:19 +0000 (22:08 +0000)]
On Windows, cause get_progname to strip any .EXE suffix.
Andrew Dunstan
Tom Lane [2004年10月24日 21:54:57 +0000 (21:54 +0000)]
Add comparison file for exp-three-digits formatting.
Tom Lane [2004年10月24日 21:47:07 +0000 (21:47 +0000)]
Replace ad-hoc atof() code with call to float4in, per Andrew Dunstan.
Tom Lane [2004年10月24日 15:55:29 +0000 (15:55 +0000)]
Write config files as text not binary, per Magnus Hagander.
Tom Lane [2004年10月24日 15:09:57 +0000 (15:09 +0000)]
Sync timezone data with latest zic database (dated Oct 11 2004).
Tom Lane [2004年10月24日 15:01:54 +0000 (15:01 +0000)]
Update RELEASE_CHANGES to mention updating the timezone database as
a routine part of release prep.
Translation update
Tom Lane [2004年10月24日 00:54:12 +0000 (00:54 +0000)]
If we're going to test for switch validity by observing whether the
compiler emits any warnings, the test program had better be 100%
correct, not only 90% correct. The recent addition of -Wold-style-definition
broke thread-safety detection on every platform that has that switch,
because the test program used an old-style definition.
Translation update
Translation updates
Translation update
Translation updates
Translation updates
Tom Lane [2004年10月23日 00:05:27 +0000 (00:05 +0000)]
Avoid overflow in cost_sort when work_mem exceeds 1Gb.
Tom Lane [2004年10月22日 22:33:58 +0000 (22:33 +0000)]
Fix tsearch build problems.
Magnus Hagander
Tom Lane [2004年10月22日 22:30:57 +0000 (22:30 +0000)]
Don't use LC_MESSAGES value on WIN32, since it doesn't work.
Magnus Hagander
Tom Lane [2004年10月22日 19:48:19 +0000 (19:48 +0000)]
Add a GUC_SUPERUSER_ONLY flag to mark GUC variables that should not be
examinable by non-superusers, and use it to protect the recently-added
GUC variables for data directory and config files. For now I have only
flagged those variables that could be used to deduce something about
the server's filesystem layout, but possibly we should also mark vars
related to logging settings and other admin-only information?
Tom Lane [2004年10月22日 17:20:05 +0000 (17:20 +0000)]
In ALTER COLUMN TYPE, strip any implicit coercion operations appearing
at the top level of the column's old default expression before adding
an implicit coercion to the new column type. This seems to satisfy the
principle of least surprise, as per discussion of bug #1290.
Translation updates
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