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Author SHA1 Message Date
Bruce Momjian
3030f18a1b Add URL for: 
* Improve speed with indexes

  For large table adjustments during VACUUM FULL, it is faster to cluster
  or reindex rather than update the index.  Also, index updates can bloat
  the index.


>   http://archives.postgresql.org/pgsql-hackers/2007-08/msg00307.php
 2008-03-12 01:48:08 +00:00
Bruce Momjian
ab2ff36465 Add: 
>
> * Allow domains to be cast
>
>   http://archives.postgresql.org/pgsql-hackers/2003-06/msg01206.php
>   http://archives.postgresql.org/pgsql-hackers/2007-08/msg00289.php
 2008-03-12 01:40:09 +00:00
Bruce Momjian
232c4b4038 Add: 
>
> * Consider simplifying how memory context resets handle child contexts
>
>   http://archives.postgresql.org/pgsql-patches/2007-08/msg00067.php
 2008-03-12 01:35:00 +00:00
Bruce Momjian
381e4cde45 Add URL for: 
>   http://archives.postgresql.org/pgsql-hackers/2007-08/msg00082.php
 2008-03-12 01:21:25 +00:00
Bruce Momjian
b21e8b2e1e Add URL for: 
* Consider increasing NUM_CLOG_BUFFERS

>   http://archives.postgresql.org/pgsql-performance/2007-08/msg00024.php
 2008-03-12 01:08:32 +00:00
Bruce Momjian
e6729a3bee Add URL for: 
* Consider increasing NUM_CLOG_BUFFERS
>
>   http://archives.postgresql.org/pgsql-hackers/2007-08/msg00030.php
>
 2008-03-12 01:03:04 +00:00
Bruce Momjian
def329d165 Prevent psql \copy from accepting multiple string parameters, e.g. 
test=> \copy billing_data from ../BillingSamplePricerFile.csv with csv
	   header quote as '"' null as 'abc' null as '123'
	\copy: parse error at "null"

Per report from Stephen Frost
 2008-03-11 23:30:56 +00:00
Bruce Momjian
288579ca71 Update TODO: 
o Allow COPY in CSV mode to control whether a quoted zero-length
          string is treated as NULL

          Currently this is always treated as a zero-length string,
          which generates an error when loading into an integer column
 2008-03-11 23:17:05 +00:00
Bruce Momjian
fc8d249457 add to TODO COPY: 
>
> 	o Allow COPY in CSV mode to control whether "" is treated as NULL
>
> 	  http://archives.postgresql.org/pgsql-hackers/2007-07/msg00905.php
 2008-03-11 22:47:28 +00:00
Bruce Momjian
5db5d70a6d Add to pl/pgsql: 
>
> 	o Improve logic of determining if an identifier is a a
> 	  variable or column name
>
> 	  http://archives.postgresql.org/pgsql-hackers/2007-07/msg00436.php
 2008-03-11 22:31:02 +00:00
Bruce Momjian
8dc75d062f Add: 
>
> * Add automated check for invalid C++ source code constructs
>
>   http://archives.postgresql.org/pgsql-patches/2007-07/msg00056.php
 2008-03-11 21:25:02 +00:00
Bruce Momjian
1ac2627ab0 Add: 
> * Research use of signals and sleep wake ups
>
>   http://archives.postgresql.org/pgsql-hackers/2007-07/msg00003.php
 2008-03-11 21:13:13 +00:00
Bruce Momjian
56c7614bb2 Add: 
* Test to see if calling PreallocXlogFiles() from the background writer
  will help with WAL segment creation latency

  http://archives.postgresql.org/pgsql-patches/2007-06/msg00340.php
 2008-03-11 21:06:10 +00:00
Bruce Momjian
955ddc3e7d < * Consider adding buffers the BGW finds reusable to the free list 
> * Consider adding buffers the background writer finds reusable to the
>   free list
>
> * Consider wither increasing BM_MAX_USAGE_COUNT improves performance
>
>   http://archives.postgresql.org/pgsql-hackers/2007-06/msg01007.php
 2008-03-11 20:46:20 +00:00
Bruce Momjian
639c6cb712 Add URL for: 
* Reduce storage space for small NUMERICs

>   http://archives.postgresql.org/pgsql-hackers/2007-06/msg00715.php
 2008-03-11 20:28:13 +00:00
Tom Lane
611b4393f2 Make TransactionIdIsInProgress check transam.c's single-item XID status cache 
before it goes groveling through the ProcArray.  In situations where the same
recently-committed transaction ID is checked repeatedly by tqual.c, this saves
a lot of shared-memory searches.  And it's cheap enough that it shouldn't
hurt noticeably when it doesn't help.
Concept and patch by Simon, some minor tweaking and comment-cleanup by Tom.
 2008-03-11 20:20:35 +00:00
Bruce Momjian
ba8a9a9282 Add: 
> 	o Consider normalizing fractions in postgresql.conf, perhaps
> 	  using '%'
>
> 	  http://archives.postgresql.org/pgsql-hackers/2007-06/msg00550.php
 2008-03-11 20:16:40 +00:00
Bruce Momjian
beaef327eb Add: 
> * Consider sorting writes during checkpoint
>
>   http://archives.postgresql.org/pgsql-hackers/2007-06/msg00541.php
 2008-03-11 20:04:56 +00:00
Bruce Momjian
a0e4f5f30a Add: 
>
> * Prefix command-line utilities like createuser with 'pg_'
>
>   http://archives.postgresql.org/pgsql-hackers/2007-06/msg00025.php
 2008-03-11 19:48:17 +00:00
Bruce Momjian
efdb082878 Add: 
>
> * Change memory allocation for multi-byte functions so memory is
>   allocated inside conversion functions
>
>   Currently we preallocate memory based on worst-case usage.
 2008-03-11 19:44:39 +00:00
Bruce Momjian
177eae145f Add another URL for: 
* Consider increasing the number of default statistics target, and
  reduce statistics target overhead

  Also consider having a larger statistics target for indexed columns
  and expression indexes
<
>   http://archives.postgresql.org/pgsql-general/2007-06/msg00542.php
 2008-03-11 19:34:12 +00:00
Bruce Momjian
73df8b174e Add URL for: 
* Consider increasing the number of default statistics target, and
  reduce statistics target overhead

  Also consider having a larger statistics target for indexed columns
  and expression indexes
>   http://archives.postgresql.org/pgsql-general/2007-05/msg01228.php
>
 2008-03-11 19:32:03 +00:00
Bruce Momjian
d14ca04e58 Add: 
>
> * Consider increasing the number of default statistics target, and
>   reduce statistics target overhead
>
>   Also consider having a larger statistics target for indexed columns
>   and expression indexes
 2008-03-11 18:30:50 +00:00
Bruce Momjian
3879b62173 Add: 
>
> * Consider using a hash for joining to a large IN (VALUES ...) list
>
>   http://archives.postgresql.org/pgsql-hackers/2007-05/msg00450.php
 2008-03-11 18:14:57 +00:00
Bruce Momjian
a2c4705702 Add for VACUUM: 
>
> * Consider a more compact data representation for dead tuples
>
>   http://archives.postgresql.org/pgsql-patches/2007-05/msg00143.php
 2008-03-11 18:05:10 +00:00
Bruce Momjian
8129a814d0 Add URL for: 
* Fix problem when multiple subtransactions of the same outer transaction
  hold different types of locks, and one subtransaction aborts

>   http://archives.postgresql.org/pgsql-hackers/2007-05/msg00773.php
 2008-03-11 18:01:04 +00:00
Bruce Momjian
c3f6ca1e27 Add: 
>
> * Add temporal versions of generate_series()
>
>   http://archives.postgresql.org/pgsql-hackers/2007-04/msg01180.php
 2008-03-11 17:42:13 +00:00
Bruce Momjian
adc0ee5ea1 Add for pl/pgsql: 
o Review handling of MOVE and FETCH


http://archives.postgresql.org/pgsql-patches/2007-04/msg00527.php
 2008-03-11 17:20:47 +00:00
Bruce Momjian
8e4b2e354f Add: 
> 	o Prevent pg_dump/pg_restore from being affected by
> 	  statement_timeout
>
> 	  Using psql to restore a pg_dump dump is also affected.
 2008-03-11 17:02:33 +00:00
Bruce Momjian
a534afc854 Add to documentation: 
+         Setting <varname>statement_timeout</> in
+         <filename>postgresql.conf</> is not recommended because it
+         affects all sessions.

Backpatch to 8.3.X.
 2008-03-11 16:59:00 +00:00
Bruce Momjian
b633f2b98a Add: 
> * Allow statistics last vacuum/analyze execution times to be displayed
>   without requiring stats_row_level to be enabled
 2008-03-11 15:52:02 +00:00
Bruce Momjian
2d049a07c9 Back out doc addition that statement_timeout affects autovacuum. 2008-03-11 15:49:46 +00:00
Bruce Momjian
032f9d9a2e Remove item, per Alvaro: 
<
< 	o Set up autovacuum to ignore statement_timeout set in
< 	  postgresql.conf
<
< 	  http://archives.postgresql.org/pgsql-hackers/2007-03/msg01753.php
 2008-03-11 15:48:50 +00:00
Bruce Momjian
bc0fc3ec5f Add: 
>
> * Consider adding buffers the BGW finds reusable to the free list
>
>   http://archives.postgresql.org/pgsql-hackers/2007-04/msg00781.php
>
> * Automatically tune bgwriter_delay based on activity rather then using a
>   fixed interval
>
>   http://archives.postgresql.org/pgsql-hackers/2007-04/msg00781.php
 2008-03-11 15:45:05 +00:00
Bruce Momjian
bbd2e68cfb Document that statement_timeout is not recommended in postgresql.conf 
because it affects all sessions, including autovacuum.
 2008-03-11 15:39:23 +00:00
Bruce Momjian
eb34ffc15b Add: 
>
> 	o Set up autovacuum to ignore statement_timeout set in
> 	  postgresql.conf
>
> 	  http://archives.postgresql.org/pgsql-hackers/2007-03/msg01753.php
 2008-03-11 15:38:54 +00:00
Bruce Momjian
bc963fe849 Add URL for: 
* Optimize referential integrity checks

>   http://archives.postgresql.org/pgsql-hackers/2007-04/msg00744.php
 2008-03-11 14:56:52 +00:00
Bruce Momjian
af7545edb7 Add URL for: 
* Allow administrators to safely terminate individual sessions either
  via an SQL function or SIGTERM

>   http://archives.postgresql.org/pgsql-hackers/2007-04/msg00218.php
 2008-03-11 14:25:51 +00:00
Tom Lane
fe83a3fdbd Use -fwrapv in CFLAGS if we are using a version of gcc that accepts this flag. 
This prevents compiler optimizations that assume overflow won't occur, which
breaks numerous overflow tests that we need to have working.  It is known
that gcc 4.3 causes problems and possible that 4.1 does.  Per my proposal
of some time ago and a recent report from Kris Jurka.

Backpatch as far as 8.0, which is as far as the patch conveniently goes.
7.x was pretty short of overflow tests anyway, so it may not matter there,
even assuming that anyone cares whether 7.x builds on recent gcc.
 2008-03-10 21:50:16 +00:00
Tom Lane
f0828b2fc3 Provide a build-time option to store large relations as single files, rather 
than dividing them into 1GB segments as has been our longtime practice.  This
requires working support for large files in the operating system; at least for
the time being, it won't be the default.

Zdenek Kotala
 2008-03-10 20:06:27 +00:00
Bruce Momjian
b6912af22b Add: 
>
> * Consider increasing the minimum allowed number of shared buffers
>
>   http://archives.postgresql.org/pgsql-bugs/2008-02/msg00157.php
>
 2008-03-10 14:16:37 +00:00
Magnus Hagander
0a66303781 Bump catversion from guc enum patch, which I forgot. Sorry! 2008-03-10 13:53:35 +00:00
Tom Lane
9d966c2e32 Fix unportable coding of new error message, per Kris Jurka. 2008-03-10 12:57:05 +00:00
Magnus Hagander
52a8d4f8f7 Implement enum type for guc parameters, and convert a couple of existing 
variables to it. More need to be converted, but I wanted to get this in
before it conflicts with too much...

Other than just centralising the text-to-int conversion for parameters,
this allows the pg_settings view to contain a list of available options
and allows an error hint to show what values are allowed.
 2008-03-10 12:55:13 +00:00
Tom Lane
23c356ccec Document and enforce that the usable range of setseed() arguments is 
-1 to 1, not 0 to 1.  The actual behavior for values within this range
does not change.  Kris Jurka
 2008-03-10 12:39:23 +00:00
Tom Lane
bfce56eea4 Throw an error for negative LIMIT or OFFSET values, instead of silently 
treating them as zero.  Simon Riggs
 2008-03-10 03:37:59 +00:00
Tom Lane
2abf130a4e Increase the default value of log_min_messages to WARNING, so that 
NOTICE-grade messages are not logged by default.  Per pgsql-hackers
discussion back on 21-Nov-2007.
 2008-03-10 03:22:29 +00:00
Tom Lane
7953fdcd9e Add a CaseSensitive parameter to synonym dictionaries. 
Simon Riggs
 2008-03-10 03:01:28 +00:00
Tom Lane
2fc2795456 Remove no-longer-used XLogCacheByte field of XLogCtl. 
Itagaki Takahiro
 2008-03-10 02:13:22 +00:00
Tom Lane
3fcc7e8e18 Reduce memory consumption during VACUUM of large relations, by using 
FSMPageData (6 bytes) instead of PageFreeSpaceInfo (8 or 16 bytes)
for the temporary array of page-free-space information.

Itagaki Takahiro
 2008-03-10 02:04:10 +00:00