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Commit Graph

1246 Commits

Author SHA1 Message Date
Tom Lane
69946411d3 Add hooks for type-specific calculation of ANALYZE statistics. Idea and
coding by Mark Cave-Ayland, some kibitzing by Tom Lane.  initdb forced
due to new column in pg_type.
2004-02-12 23:41:04 +00:00
Tom Lane
7bed6df184 Check only live tuples for OID validity, to avoid issues after ALTER
TABLE.  Per recent discussion.
2004-02-12 05:39:55 +00:00
Tom Lane
58f337a343 Centralize implementation of delay code by creating a pg_usleep()
subroutine in src/port/pgsleep.c.  Remove platform dependencies from
miscadmin.h and put them in port.h where they belong.  Extend recent
vacuum cost-based-delay patch to apply to VACUUM FULL, ANALYZE, and
non-btree index vacuuming.

By the way, where is the documentation for the cost-based-delay patch?
2004-02-10 03:42:45 +00:00
Tom Lane
87bd956385 Restructure smgr API as per recent proposal. smgr no longer depends on
the relcache, and so the notion of 'blind write' is gone.  This should
improve efficiency in bgwriter and background checkpoint processes.
Internal restructuring in md.c to remove the not-very-useful array of
MdfdVec objects --- might as well just use pointers.
Also remove the long-dead 'persistent main memory' storage manager (mm.c),
since it seems quite unlikely to ever get resurrected.
2004-02-10 01:55:27 +00:00
Neil Conway
f06e79525a Win32 signals cleanup. Patch by Magnus Hagander, with input from Claudio
Natoli and Bruce Momjian (and some cosmetic fixes from Neil Conway).
Changes:

    - remove duplicate signal definitions from pqsignal.h

    - replace pqkill() with kill() and redefine kill() in Win32

    - use ereport() in place of fprintf() in some error handling in
      pqsignal.c

    - export pg_queue_signal() and make use of it where necessary

    - add a console control handler for Ctrl-C and similar handling
      on Win32

    - do WaitForSingleObjectEx() in CHECK_FOR_INTERRUPTS() on Win32;
      query cancelling should now work on Win32

    - various other fixes and cleanups
2004-02-08 22:28:57 +00:00
Jan Wieck
f425b605f4 Cost based vacuum delay feature.
Jan
2004-02-06 19:36:18 +00:00
Tom Lane
391c3811a2 Rename SortMem and VacuumMem to work_mem and maintenance_work_mem.
Make btree index creation and initial validation of foreign-key constraints
use maintenance_work_mem rather than work_mem as their memory limit.
Add some code to guc.c to allow these variables to be referenced by their
old names in SHOW and SET commands, for backwards compatibility.
2004-02-03 17:34:04 +00:00
Bruce Momjian
bd2a8078d3 > src/backend/commands/user.c file has some parse error at repalloc(),
palloc()$

Fixed.  Thanks.

> src/backend/postmaster/pgstat.c miss
> #include "tcop/tcopprot.h" line.

Fixed.

> src/utils/dllinit.c wrong include header line at MinGW.
> #include <cygwin/version.h> must be not included

Fixed.

> by the way,
> I can't compile eccp because I used lower version bison.

> and bin/pg_resetxlog too. in this case I can't find what's wrong.

Fixed.
2004-02-02 17:21:08 +00:00
Bruce Momjian
4c29e21578 Adjustments for Win32-specific rename code, and add include file. 2004-02-02 16:37:46 +00:00
Bruce Momjian
d9d2ca8e8e Adjust rename on Win32 to only link to temp name while holding lock,
then release locks and loop over renaming to active file name.
2004-02-02 00:17:23 +00:00
Neil Conway
7b2cf1713d Micro-opt: replace calls like
appendStringInfo(buf, "%s", str);
with
    appendStringInfoString(buf, str);
as the latter form is slightly faster.
2004-01-31 05:09:41 +00:00
Tom Lane
2f0d43b251 Review uses of IsUnderPostmaster, change some tests to look at
whereToSendOutput instead because they are really inquiring about
the correct client communication protocol.  Update some comments.
This is pointing towards supporting regular FE/BE client protocol
in a standalone backend, per discussion a month or so back.
2004-01-28 21:02:40 +00:00
Bruce Momjian
50491963cb Here's the latest win32 signals code, this time in the form of a patch
against the latest shapshot. It also includes the replacement of kill()
with pqkill() and sigsetmask() with pqsigsetmask().

Passes all tests fine on my linux machine once applied. Still doesn't
link completely on Win32 - there are a few things still required. But
much closer than before.

At Bruce's request, I'm goint to write up a README file about the method
of signals delivery chosen and why the others were rejected (basically a
summary of the mailinglist discussions). I'll finish that up once/if the
patch is accepted.


Magnus Hagander
2004-01-27 00:45:26 +00:00
Tom Lane
c77f363384 Ensure that close() and fclose() are checked for errors, at least in
cases involving writes.  Per recent discussion about the possibility
of close-time failures on some filesystems.  There is a TODO item for
this, too.
2004-01-26 22:35:32 +00:00
Neil Conway
0bd3606d72 Fix a minor bug introduced by the recent CREATE TABLE AS / WITH OIDS
patch: a 3-value enum was mistakenly assigned directly to a 'bool'
in transformCreateStmt(). Along the way, change makeObjectName()
to be static, as it isn't used outside analyze.c
2004-01-23 02:13:12 +00:00
Tom Lane
9bd681a522 Repair problem identified by Olivier Prenant: ALTER DATABASE SET search_path
should not be too eager to reject paths involving unknown schemas, since
it can't really tell whether the schemas exist in the target database.
(Also, when reading pg_dumpall output, it could be that the schemas
don't exist yet, but eventually will.)  ALTER USER SET has a similar issue.
So, reduce the normal ERROR to a NOTICE when checking search_path values
for these commands.  Supporting this requires changing the API for GUC
assign_hook functions, which causes the patch to touch a lot of places,
but the changes are conceptually trivial.
2004-01-19 19:04:40 +00:00
Tom Lane
be4b8a867f Don't use %s-with-precision format spec to truncate data being displayed
in a COPY error message.  It seems that glibc gets indigestion if it is
asked to truncate strings that contain invalid UTF-8 encoding sequences.
vsnprintf will return -1 in such cases, leading to looping and eventual
memory overflow in elog.c.  Instead use our own, more robust pg_mbcliplen
routine.  I believe this problem accounts for several recent reports of
unexpected 'out of memory' errors during COPY IN.
2004-01-18 02:15:29 +00:00
Tom Lane
cfd7fb7ed4 Fix permission-checking bug reported by Tim Burgess 10-Feb-03 (this time
for sure...).  Rather than relying on the query context of a rangetable
entry to identify what permissions it wants checked, store a full AclMode
mask in each RTE, and check exactly those bits.  This allows an RTE
specifying, say, INSERT privilege on a view to be copied into a derived
UPDATE query without changing meaning.  Per recent discussion thread.
initdb forced due to change of stored rule representation.
2004-01-14 23:01:55 +00:00
Neil Conway
98dcf085e3 Implement "WITH / WITHOID OIDS" clause for CREATE TABLE AS. This is
intended to allow application authors to insulate themselves from
changes to the default value of 'default_with_oids' in future releases
of PostgreSQL.

This patch also fixes a bug in the earlier implementation of the
'default_with_oids' GUC variable: code in gram.y should not examine
the value of GUC variables directly due to synchronization issues.
2004-01-10 23:28:45 +00:00
Neil Conway
192ad63bd7 More janitorial work: remove the explicit casting of NULL literals to a
pointer type when it is not necessary to do so.

For future reference, casting NULL to a pointer type is only necessary
when (a) invoking a function AND either (b) the function has no prototype
OR (c) the function is a varargs function.
2004-01-07 18:56:30 +00:00
Tom Lane
a77e32d7c5 Apply the core parts of Dennis Bjorklund's patch to allow function
parameters to be declared with names.  pg_proc has a column to store
names, and CREATE FUNCTION can insert data into it, but that's all as
yet.  I need to do more work on the pg_dump and plpgsql portions of the
patch before committing those, but I thought I'd get the bulky changes
in before the tree drifts under me.
initdb forced due to pg_proc change.
2004-01-06 23:55:19 +00:00
Neil Conway
dfc7e7b71d Code cleanup, mostly in the smgr:
- Update comment in IsReservedName() to the present day

     - Improve some variable & function names in commands/vacuum.c. I
       was planning to rewrite this to avoid lappend(), but since I
       still intend to do the list rewrite, there's no need for that.

     - Update some smgr comments which seemed to imply that we still
       forced all dirty pages to disk at commit-time.

     - Replace some #ifdef DIAGNOSTIC code with assertions.

     - Make the distinction between OS-level file descriptors and
       virtual file descriptors a little clearer in a few comments

     - Other minor comment improvements in the smgr code
2004-01-06 18:07:32 +00:00
Tom Lane
c607bd693f Clean up the usage of canonicalize_qual(): in particular, be consistent
about whether it is applied before or after eval_const_expressions().
I believe there were some corner cases where the system would fail to
recognize that a partial index is applicable because of the previous
inconsistency.  Store normal rather than 'implicit AND' representations
of constraints and index predicates in the catalogs.
initdb forced due to representation change of constraints/predicates.
2003-12-28 21:57:37 +00:00
Bruce Momjian
0ea4f9c859 Back out:
>  Attached is a patch that addressed all the discussed issues
>  that did not break backward compatability, including the
>  ability to output ISO-8601 compliant intervals by setting
>  datestyle to iso8601basic.
2003-12-21 04:34:36 +00:00
Bruce Momjian
54c8e821b8 In my mind there were two categories of open issues
a) ones that are 100% backward (such as the comment about
     outputting this format)
and
  b) ones that aren't (such as deprecating the current
     postgresql shorthand of
         '1Y1M'::interval = 1 year 1 minute
     in favor of the ISO-8601
         'P1Y1M'::interval = 1 year 1 month.

Attached is a patch that addressed all the discussed issues that
did not break backward compatability, including the ability to
output ISO-8601 compliant intervals by setting datestyle to
iso8601basic.

Interval values can now be written as  ISO 8601 time intervals, using
the "Format with time-unit designators". This format always starts with
the character 'P', followed  by a string of values followed
by single character time-unit designators. A 'T' separates the date and
time parts of the interval.

Ron Mayer
2003-12-20 15:32:55 +00:00
Bruce Momjian
19055b78ef Add mention with might need to use cp -R someday for portability. 2003-12-15 22:56:44 +00:00
Neil Conway
fef0c8345a I posted some bufmgr cleanup a few weeks ago, but it conflicted with
some concurrent changes Jan was making to the bufmgr. Here's an
updated version of the patch -- it should apply cleanly to CVS
HEAD and passes the regression tests.

This patch makes the following changes:

     - remove the UnlockAndReleaseBuffer() and UnlockAndWriteBuffer()
       macros, and replace uses of them with calls to the appropriate
       functions.

     - remove a bunch of #ifdef BMTRACE code: it is ugly & broken
       (i.e. it doesn't compile)

     - make BufferReplace() return a bool, not an int

     - cleanup some logic in bufmgr.c; should be functionality
       equivalent to the previous code, just cleaner now

     - remove the BM_PRIVATE flag as it is unused

     - improve a few comments, etc.
2003-12-14 00:34:47 +00:00
Peter Eisentraut
2afacfc403 This patch properly sets the prototype for the on_shmem_exit and
on_proc_exit functions, and adjust all other related code to use
the proper types too.

by Kurt Roeckx
2003-12-12 18:45:10 +00:00
PostgreSQL Daemon
969685ad44 $Header: -> $PostgreSQL Changes ... 2003-11-29 19:52:15 +00:00
Tom Lane
1c5f223e25 Overdue code review for ALTER SEQUENCE patch. Don't generate illegal Node
tree for CYCLE option; don't assume zeros are invalid values for sequence
fields other than increment_by; don't reset cache_value when not told to;
simplify code for testing whether to apply defaults.
2003-11-24 16:54:07 +00:00
Tom Lane
42ce74bf17 COMMENT ON casts, conversions, languages, operator classes, and
large objects.  Dump all these in pg_dump; also add code to pg_dump
user-defined conversions.  Make psql's large object code rely on
the backend for inserting/deleting LOB comments, instead of trying to
hack pg_description directly.  Documentation and regression tests added.

Christopher Kings-Lynne, code reviewed by Tom
2003-11-21 22:32:49 +00:00
Jan Wieck
cfeca62148 Background writer process
This first part of the background writer does no syncing at all.
It's only purpose is to keep the LRU heads clean so that regular
backends seldom to never have to call write().

Jan
2003-11-19 15:55:08 +00:00
Jan Wieck
6b86d62b00 2nd try for the ARC strategy.
I added a couple more Assertions while tracking down the exact
cause of the former bug.

All 93 regression tests pass now.

Jan
2003-11-13 14:57:15 +00:00
Jan Wieck
923e994d79 ARC strategy backed out ... sorry
Jan
2003-11-13 05:34:58 +00:00
Jan Wieck
48adc0b34b Replacement of the buffer replacement strategy with an ARC
algorithm adopted for PostgreSQL.

Jan
2003-11-13 00:40:02 +00:00
Tom Lane
fa5c8a055a Cross-data-type comparisons are now indexable by btrees, pursuant to my
pghackers proposal of 8-Nov.  All the existing cross-type comparison
operators (int2/int4/int8 and float4/float8) have appropriate support.
The original proposal of storing the right-hand-side datatype as part of
the primary key for pg_amop and pg_amproc got modified a bit in the event;
it is easier to store zero as the 'default' case and only store a nonzero
when the operator is actually cross-type.  Along the way, remove the
long-since-defunct bigbox_ops operator class.
2003-11-12 21:15:59 +00:00
Tom Lane
c1d62bfd00 Add operator strategy and comparison-value datatype fields to ScanKey.
Remove the 'strategy map' code, which was a large amount of mechanism
that no longer had any use except reverse-mapping from procedure OID to
strategy number.  Passing the strategy number to the index AM in the
first place is simpler and faster.
This is a preliminary step in planned support for cross-datatype index
operations.  I'm committing it now since the ScanKeyEntryInitialize()
API change touches quite a lot of files, and I want to commit those
changes before the tree drifts under me.
2003-11-09 21:30:38 +00:00
Peter Eisentraut
96889392e9 Implement isolation levels read uncommitted and repeatable read as acting
like the next higher one.
2003-11-06 22:08:15 +00:00
Tom Lane
c02036b1d8 Simplify loop test to avoid bug in AIX compiler, per Andreas. 2003-10-18 15:38:06 +00:00
Tom Lane
fe1b5034dd Adjust display of actual runtimes in EXPLAIN output to use three fractional
digits, and label it 'ms' not 'msec', for consistency with psql's \timing
display.  Per recent discussions.
2003-10-17 01:14:26 +00:00
Tom Lane
90b2202975 Fix bad interaction between NOTIFY processing and V3 extended query
protocol, per report from Igor Shevchenko.  NOTIFY thought it could
do its thing if transaction blockState is TBLOCK_DEFAULT, but in
reality it had better check the low-level transaction state is
TRANS_DEFAULT as well.  Formerly it was not possible to wait for the
client in a state where the first is true and the second is not ...
but now we can have such a state.  Minor cleanup in StartTransaction()
as well.
2003-10-16 16:50:41 +00:00
Bruce Momjian
4a39057e59 Back out makeNode() patch to fix gcc 3.3.1 warning. 2003-10-13 22:47:15 +00:00
Tom Lane
e7261c46aa Adjust setRelhassubclassInRelation() to not perform actual heap_update
when the pg_class.relhassubclass value is already correct.  This should
avoid most cases of the 'tuple concurrently updated' problem that
Robert Creager recently complained about.  Also remove a bunch of dead
code in StoreCatalogInheritance() --- it was still computing the complete
list of direct and indirect inheritance ancestors, though that list has
not been needed since we got rid of the pg_ipl catalog.
2003-10-13 20:02:52 +00:00
Bruce Momjian
4a2c34d4a0 Use makeNode() to allocate structures that have to be cast to Node *,
rather than allocating them on the stack.

Fixes complaint from gcc 3.3.1.
2003-10-12 23:19:21 +00:00
Bruce Momjian
7fb9893f42 Back out -fstrict-aliasing void* casting. 2003-10-11 18:04:26 +00:00
Bruce Momjian
d51368dbbd This patch will stop gcc from issuing warnings about type-punned objects
when -fstrict-aliasing is turned on, as it is in the latest gcc when you
use -O2

Andrew Dunstan
2003-10-11 16:30:55 +00:00
Tom Lane
fec58f6c3f During ALTER TABLE ADD FOREIGN KEY, try to check the existing rows using
a single LEFT JOIN query instead of firing the check trigger for each
row individually.  Stephan Szabo, with some kibitzing from Tom Lane and
Jan Wieck.
2003-10-06 16:38:28 +00:00
Tom Lane
0eceaaf9b7 Modify COPY FROM to match the null-value string against the column value
before it is de-backslashed, not after.  This allows the null string \N
to be reliably distinguished from the data value \N (which must be
represented as \\N).  Per bug report from Manfred Koizar ... but it's
amazing this hasn't been reported before ...
Also, be consistent about encoding conversion for null string: the form
specified in the command is in the server encoding, but what is sent
to/from client must be in client encoding.  This never worked quite
right before either.
2003-10-06 02:38:53 +00:00
Tom Lane
19c90bcc25 Add a bit more locking to vac_update_relstats and vac_update_dbstats
to make them comparable to what UpdateStats does in the same situation.
I'm not certain two instances of vac_update_relstats could run in
parallel for the same relation, but parallel invocations of vac_update_dbstats
do seem possible.
2003-10-02 23:19:44 +00:00
Peter Eisentraut
14528ffe6b String fixes/improvements found by Alvaro Herrera 2003-10-02 06:36:37 +00:00