git.postgresql.org Git - postgresql.git/log
Tom Lane [2005年3月20日 22:27:52 +0000 (22:27 +0000)]
On Windows, use QueryPerformanceCounter instead of gettimeofday for
EXPLAIN ANALYZE instrumentation. Magnus Hagander
Tom Lane [2005年3月20日 22:00:54 +0000 (22:00 +0000)]
Remove unnecessary calls of FlushRelationBuffers: there is no need
to write out data that we are about to tell the filesystem to drop.
smgr_internal_unlink already had a DropRelFileNodeBuffers call to
get rid of dead buffers without a write after it's no longer possible
to roll back the deleting transaction. Adding a similar call in
smgrtruncate simplifies callers and makes the overall division of
labor clearer. This patch removes the former behavior that VACUUM
would write all dirty buffers of a relation unconditionally.
Add mention of why malloc() has to be used in snprintf.c.
Department of second thoughts. Remove FRONTEND from snprintf.c because
snprintf is called before the memory system is started. We have to just
malloc/free. There are no elogs in the code so we should be fine.
Fix typo in Makefile.
Another change for FRONTEND snprintf.c.
Mark snprintf.c as a file that uses FRONTEND and needs to a version in
the server-side port library. Somehow I missed that change when I added
memory allocation to snprintf.c.
Done:
> * -Allow the size of the buffer cache used by temporary objects to be
Tom Lane [2005年3月19日 23:27:11 +0000 (23:27 +0000)]
Add temp_buffers GUC variable to allow users to determine the size
of the local buffer arena for temporary table access.
Tom Lane [2005年3月19日 17:39:43 +0000 (17:39 +0000)]
Upgrade localbuf.c to use a hash table instead of linear search to
find already-allocated local buffers. This is the last obstacle
in the way of setting NLocBuffer to something reasonably large.
Tom Lane [2005年3月18日 17:32:55 +0000 (17:32 +0000)]
Put 'dump complete' message in the right place, so it comes out where
it's supposed to when --file option is used.
Tom Lane [2005年3月18日 16:16:09 +0000 (16:16 +0000)]
Need to reset local buffer pin counts, not only shared buffer pins,
before we attempt any file deletions in ShutdownPostgres. Per Tatsuo.
Added patch by Christof Petig <christof@petig-baender.de> to work around gcc bug on powerpc and amd64.
Tom Lane [2005年3月18日 05:25:23 +0000 (05:25 +0000)]
Avoid infinite loop in InvalidateBuffer if we ourselves are holding
a pin on the victim buffer.
Tom Lane [2005年3月18日 05:24:13 +0000 (05:24 +0000)]
Need to release buffer pins before attempting to drop files during
backend exit. Per report from Bruce.
Tom Lane [2005年3月18日 03:48:49 +0000 (03:48 +0000)]
Treat EPERM as a non-error case when checking to see if old postmaster
is still alive. This improves our odds of not getting fooled by an
unrelated process when checking a stale lock file. Other checks already
in place, plus one newly added in checkDataDir(), ensure that we cannot
attempt to usurp the place of a postmaster belonging to a different userid,
so there is no need to error out. Add comments indicating the importance
of these other checks.
This patch moves some code for preprocessing FOR UPDATE from
grouping_planner() to preprocess_targetlist(), according to a comment
in grouping_planner(). I think the refactoring makes sense, and moves
some extraneous details out of grouping_planner().
Add link to INSERT in docs.
Robert Treat
Update file system snapshot docs.
Tom Lane [2005年3月17日 15:25:51 +0000 (15:25 +0000)]
Update obsolete comment.
Trivial comment tweak.
Mention tablespaces as a problem for using file system snapshots.
Document use of rsync for file system backups.
Tino Wildenhain
Add mention of compatibility problem with turning off backslash escapes:
< SQL-spec compliant, so allow such handling to be disabled.
> SQL-spec compliant, so allow such handling to be disabled. However,
> disabling backslashes could break many third-party applications and tools.
Factor duplicate snprintf code into functions.
Add a reference to the documentation on alternate index operator classes in
the locale docs. Patch from Chris KL, editorialization by Neil Conway.
This patch makes \d on tables and views sort fk constraints, triggers
and rules alphabetically in the output. This makes it the same as
for indexes and stops the irritating random or reverse ordering it
currently has.
Chris KL
Force initdb cause of encoding additions.
Tom Lane [2005年3月16日 21:38:10 +0000 (21:38 +0000)]
Revise TupleTableSlot code to avoid unnecessary construction and disassembly
of tuples when passing data up through multiple plan nodes. A slot can now
hold either a normal "physical" HeapTuple, or a "virtual" tuple consisting
of Datum/isnull arrays. Upper plan levels can usually just copy the Datum
arrays, avoiding heap_formtuple() and possible subsequent nocachegetattr()
calls to extract the data again. This work extends Atsushi Ogawa's earlier
patch, which provided the key idea of adding Datum arrays to TupleTableSlots.
(I believe however that something like this was foreseen way back in Berkeley
days --- see the old comment on ExecProject.) A test case involving many
levels of join of fairly wide tables (about 80 columns altogether) showed
about 3x overall speedup, though simple queries will probably not be
helped very much.
I have also duplicated some code in heaptuple.c in order to provide versions
of heap_formtuple and friends that use "bool" arrays to indicate null
attributes, instead of the old convention of "char" arrays containing either
'n' or ' '. This provides a better match to the convention used by
ExecEvalExpr. While I have not made a concerted effort to get rid of uses
of the old routines, I think they should be deprecated and eventually removed.
Add sprintf support, that were were missing.
Add support for snprintf '+', 'h', and %* length settings.
pgindent snprintf.c for consistency.
Fix snprintf for %*$.
Add CVS \r\n regression tests.
Andrew Dunstan
Fix snprintf to handle %$ properly by storing and reordering the
arguments.
Nicolai Tufar
Add missing include for new lc_ctype_is_c() function.
Per Neil.
Prevent locale-aware handling of upper, lower, and initcap when the
locale is C.
Backpatch to 8.0.X because some operating systems were throwing errors
for such operations, rather than ignoring the locale when it was C.
Wrap the implementation of fork_process() inside #ifndef WIN32 -- this
should hopefully unbreak the Win32 build. Apologies for breaking it in
the first place.
Update to 8.0.1.
Add:
> * Allow sequential scans to take advantage of other concurrent
> sequentiqal scans, also called "Synchronised Scanning"
Update Win32 item:
< o Disallow encodings like UTF8 which PostgreSQL supports
< but the operating system does not (already disallowed by
< pginstaller)
> o Add support for Unicode
< To fix UTF8, the data needs to be converted to UTF16 and then
< the Win32 wcscoll() can be used, and perhaps other functions
> To fix this, the data needs to be converted to/from UTF16/UTF8
> so the Win32 wcscoll() can be used, and perhaps other functions
< locales but provides no ordering.
<
> locales but provides no ordering or character set classes.
Clean up win1252 documentation. Mention how we determine the number of
bytes/character for each encoding.
Issue free space notices to both the user and the server log file.
Tom Lane [2005年3月14日 18:57:33 +0000 (18:57 +0000)]
Make pg_dump emit a useful error message, instead of just dumping core,
if it finds a pg_rewrite entry for which there is no pg_class entry.
Per report from Andrew Slobodyanyk.
Add support for Win1252 encoding.
Roland Volkmann
Bump minor version numbers for 8.1 compared to 8.0.
Completed:
> * -Cache last known per-tuple offsets to speed long tuple access
Fix mistakes in SGML markup. From David Fetter.
Tom Lane [2005年3月14日 06:19:01 +0000 (06:19 +0000)]
Note that the -F and -R command line options only affect unaligned
output mode. This was already stated in other places in the psql
reference page, but not here.
Tom Lane [2005年3月14日 04:41:13 +0000 (04:41 +0000)]
Avoid O(N^2) overhead in repeated nocachegetattr calls when columns of
a tuple are being accessed via ExecEvalVar and the attcacheoff shortcut
isn't usable (due to nulls and/or varlena columns). To do this, cache
Datums extracted from a tuple in the associated TupleTableSlot.
Also some code cleanup in and around the TupleTable handling.
Atsushi Ogawa with some kibitzing by Tom Lane.
Document client-only encodings.
Fix typo on URL.
Add user:
> * Support triggers on columns (Greg Sabino Mullane)
Finalize character set documentation changes.
Allow ALTER FUNCTION to change a function's strictness, volatility, and
whether or not it is a security definer. Changing a function's strictness
is required by SQL2003, and the other capabilities make sense. Also, allow
an optional RESTRICT noise word to be specified, for SQL conformance.
Some trivial regression tests added and the documentation has been
updated.
Update comments for new encoding names.
Tom Lane [2005年3月13日 23:32:26 +0000 (23:32 +0000)]
Add missing identification comment, remove entirely inappropriate include
of postgres.h.
Tom Lane [2005年3月13日 23:27:38 +0000 (23:27 +0000)]
Add some missing #includes.
Increment all major version numbers in 8.0.X to force recompile of
client aplications so 7.4.X releases can be installed on the same
machine as 8.0.X.
Tom Lane [2005年3月13日 19:59:40 +0000 (19:59 +0000)]
Forgot that I had intended to replace division by masking in hash calculation.
Remove CENTER tag.
Make default_with_oids default to false -- user-created tables will now
no longer include OIDs, unless WITH OIDS is specified or the
default_with_oids configuration parameter is enabled. Update the docs
accordingly.
More ordering adjustments.
Update obsolete comment.
Fix markup.
More markup changes.
More cleanups.
More improvements.
More additions to the table.
Keep changing the markup until I like it. :-)
More table markup improvements.
More table markup fixes.
Rework "aliases" column for encodings.
Fix markup typo.
Add missing conversion documentation for certain encodings.
Reorder documented encodings to be alphabetical.
Remove warning about pre-7.2 LATIN5 usage.
Document aliases for our supported encodings.
Add a few encodings that were not documented.
Tom Lane [2005年3月12日 21:33:55 +0000 (21:33 +0000)]
When cloning template0 (or other fully-frozen databases), set the new
database's datallowconn and datfrozenxid to the current transaction ID
instead of copying the source database's values. This is OK because we
assume the source DB contains no normal transaction IDs whatsoever.
This keeps VACUUM from immediately starting to complain about unvacuumed
databases in the situation where we are more than 2 billion transactions
out from the XID stamp of template0. Per discussion with Milen Radev
(although his complaint turned out to be due to something else, but the
problem is real anyway).
Tom Lane [2005年3月12日 21:11:50 +0000 (21:11 +0000)]
Fix ALTER DATABASE RENAME to allow the operation if user is a superuser
who for some reason isn't marked usecreatedb. Per report from Alexander
Pravking. Also fix sloppy coding in have_createdb_privilege().
Tom Lane [2005年3月12日 20:25:06 +0000 (20:25 +0000)]
Adjust the API for aggregate function calls so that a C-coded function
can tell whether it is being used as an aggregate or not. This allows
such a function to avoid re-pallocing a pass-by-reference transition
value; normally it would be unsafe for a function to scribble on an input,
but in the aggregate case it's safe to reuse the old transition value.
Make int8inc() do this. This gets a useful improvement in the speed of
COUNT(*), at least on narrow tables (it seems to be swamped by I/O when
the table rows are wide). Per a discussion in early December with
Neil Conway. I also fixed int_aggregate.c to check this, thereby
turning it into something approaching a supportable technique instead
of being a crude hack.
Add pg_buffercache contrib module, from Mark Kirkwood.
Some builds (depends on crypto engine support?) of OpenSSL
0.9.7x have EVP_DigestFinal function which which clears all of
EVP_MD_CTX. This makes pgcrypto crash in functions which
re-use one digest context several times: hmac() and crypt()
with md5 algorithm.
Following patch fixes it by carring the digest info around
EVP_DigestFinal and re-initializing cipher.
Marko Kreen.
Documention all our supported encodings.
Done:
< o Allow COPY FROM ... CSV to interpret newlines and carriage
> o -Allow COPY FROM ... CSV to interpret newlines and carriage
Handle carriage returns and line feeds in COPY CSV mode.
Andrew Dunstan
Done:
* -Add a warning when the free space map is too small
Add warning about the need to increase "max_fsm_relations" and
"max_fsm_relations" for vacuums. Also improve VACUUM VERBOSE final
message text.
Ron Mayer
Fix snprintf() to properly handle precision specification for %f.
Tom Lane [2005年3月12日 01:54:44 +0000 (01:54 +0000)]
Fix problem with infinite recursion between write_syslogger_file and
elog if the former has trouble writing its file. Code review for
Magnus' patch to redirect stderr to syslog on Windows (Bruce's version
seems right, but did some minor prettification).
Backpatch both changes to 8.0 branch.
Here's the patch to fix a lot of markup errors in the HTML FAQs. Doesn't
change content (at least not supposed to).
Magnus Hagander
Add fprintf() custom version to libpgport.
Document use of macros for pg_printf functions.
Bump major versions of all interfaces to handle movement of get_progname
from libpq to libpgport in 8.0, and probably other libpgport changes in 8.1.
Define snprintf() to call pg_snprintf() so our own snprintf-like
implementation doesn't export out via libpq and get used by a user
application.
Add 'static' to initdb.c file-global variables.
Mark file-global function and variables as static.
Fix typos.
Hashem Masoud
Fix typos.
Robert Treat
Fix typos.
Robert Treat
Fix typo.
Slight refactoring and optimization of some code in WaitOnLock().
Add:
> * Fix cross-compiling of time zone database via 'zic'
Tom Lane [2005年3月10日 23:21:26 +0000 (23:21 +0000)]
Make the behavior of HAVING without GROUP BY conform to the SQL spec.
Formerly, if such a clause contained no aggregate functions we mistakenly
treated it as equivalent to WHERE. Per spec it must cause the query to
be treated as a grouped query of a single group, the same as appearance
of aggregate functions would do. Also, the HAVING filter must execute
after aggregate function computation even if it itself contains no
aggregate functions.
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