Commit Graph

23964 Commits

Author SHA1 Message Date
Bruce Momjian
ff0d8159fe Add:
>
> * Improve merge join performance by allowing mark/restore of
>   tuple sources
>
>   http://archives.postgresql.org/pgsql-hackers/2007-01/msg00096.php
>
2007-01-09 22:43:31 +00:00
Bruce Momjian
5b7be582e2 Update the UTF-8 RFC reference. RFC 2044 was obsoleted by RFC 2279,
which was obsoleted by RFC 3629.

Michael Fuhr
2007-01-09 22:22:55 +00:00
Bruce Momjian
f3a7068a54 Build SGML documention output several times if necessary to have proper
indexes;  add 'draft' option to disable it.
2007-01-09 22:19:36 +00:00
Bruce Momjian
0764f41306 Have log_temp_files be in kilobytes, remove trace call. 2007-01-09 22:16:46 +00:00
Bruce Momjian
d64995aa89 Remove trace macro call from new log_temp_files, until it gets more
research.
2007-01-09 22:03:51 +00:00
Bruce Momjian
40f797be03 Enable another five tuple status bits by using the high bits of the
nattr field, and rename the field.

Heikki Linnakangas
2007-01-09 22:01:00 +00:00
Bruce Momjian
ca9213e8fa Done:
> * -Add ability to monitor the use of temporary sort files
2007-01-09 21:33:24 +00:00
Bruce Momjian
be8a431881 Add GUC log_temp_files to log the use of temporary files.
Bill Moran
2007-01-09 21:31:17 +00:00
Tom Lane
1e0bf9041e Marginal tweaks in the documentation for ORDER BY; in particular point
out the common error that ORDER BY x, y DESC does not mean the same as
ORDER BY x DESC, y DESC.
2007-01-09 16:59:20 +00:00
Tom Lane
69db009163 Add a citation to Seltzer and Yigit's Usenix '91 paper about hash table
management.  The paper clearly describes many of the ideas embodied in
our current hashing code, but as far as I could find out there is not
a direct code heritage.  (Mike Olsen recalls discussion of this paper
at Postgres meetings but believes it "informed the Postgres implementation
probably just at the design level".  Margo herself says she wasn't
involved with Postgres' hash code.)  Credit where credit is due 'n all
that, even if fifteen years after the fact.
2007-01-09 07:30:49 +00:00
Tom Lane
352871c357 Fix vcbuild to allow building without OpenSSL and/or zlib. Magnus 2007-01-09 06:00:43 +00:00
Tom Lane
7d5d06f860 vcbuild documentation from Magnus and Dave. 2007-01-09 05:56:49 +00:00
Bruce Momjian
b0452cd87d Done:
< * Allow the creation of indexes with mixed ascending/descending
> * -Allow the creation of indexes with mixed ascending/descending
<
<   This is possible now by creating an operator class with reversed sort
<   operators.  One complexity is that NULLs would then appear at the start
<   of the result set, and this might affect certain sort types, like
<   merge join.
<
2007-01-09 03:43:32 +00:00
Tom Lane
833f9cb7b8 pltcl regression test needs to actually create an opclass, not just one operator. 2007-01-09 03:13:38 +00:00
Tom Lane
4431758229 Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST
per-column options for btree indexes.  The planner's support for this is still
pretty rudimentary; it does not yet know how to plan mergejoins with
nondefault ordering options.  The documentation is pretty rudimentary, too.
I'll work on improving that stuff later.

Note incompatible change from prior behavior: ORDER BY ... USING will now be
rejected if the operator is not a less-than or greater-than member of some
btree opclass.  This prevents less-than-sane behavior if an operator that
doesn't actually define a proper sort ordering is selected.
2007-01-09 02:14:16 +00:00
Peter Eisentraut
3a32ba2f3f Prevent duplicate attribute names in XMLELEMENT. 2007-01-08 23:41:57 +00:00
Tom Lane
19f9376bf4 Tweak joinlist creation to avoid generating useless one-element subproblems
when collapsing of JOIN trees is stopped by join_collapse_limit.  For instance
a list of 11 LEFT JOINs with limit 8 now produces something like
	((1 2 3 4 5 6 7 8) 9 10 11 12)
instead of
	(((1 2 3 4 5 6 7 8) (9)) 10 11 12)
The latter structure is really only required for a FULL JOIN.
Noted while studying an example from Shane Ambler.
2007-01-08 16:47:30 +00:00
Tom Lane
9a9a143a98 Remove cost_hashjoin's very ancient hack to discourage (once, entirely forbid)
hash joins with the estimated-larger relation on the inside.  There are
several cases where doing that makes perfect sense, and in cases where it
doesn't, the regular cost computation really ought to be able to figure that
out.  Make some marginal tweaks in said computation to try to get results
approximating reality a bit better.  Per an example from Shane Ambler.

Also, fix an oversight in the original patch to add seq_page_cost: the costs
of spilling a hash join to disk should be scaled by seq_page_cost.
2007-01-08 16:09:22 +00:00
Peter Eisentraut
d807c7ef3f Some fine-tuning of xmlpi in corner cases:
- correct error codes
- do syntax checks in correct order
- strip leading spaces of argument
2007-01-07 22:49:56 +00:00
Peter Eisentraut
de9aa5a7b4 Check and document minimum required version of libxml. 2007-01-07 21:10:41 +00:00
Peter Eisentraut
fe733968ea Indent comments in makefiles better so they don't appear in the output. 2007-01-07 08:49:31 +00:00
Peter Eisentraut
53a11befc8 Allow XML fragment to contain a XML declaration. For that, we need a small
hand-crafted parser for the XML declaration, because libxml doesn't seem
to allow this.
2007-01-07 00:13:55 +00:00
Bruce Momjian
324297dfbb Remove:
< * %Allow the identifier length to be increased via a configure option
2007-01-06 22:55:09 +00:00
Bruce Momjian
06d009010c Updates for MONEY data type:
< * Improve the MONEY data type
> * -Make 64-bit version of the MONEY data type
> * Add locale-aware MONEY type, and support multiple currencies
<   Change the MONEY data type to use DECIMAL internally, with special
<   locale-aware output formatting.
<   http://archives.postgresql.org/pgsql-hackers/2006-09/msg01107.php
2007-01-06 22:24:16 +00:00
Bruce Momjian
d23d19a1a2 Done:
> * -Allow user-defined types to accept 'typmod' parameters
2007-01-06 22:19:46 +00:00
Bruce Momjian
94609f0068 Add:
>
> * Make consistent use of long/short command options --- pg_ctl needs
>   long ones, pg_config doesn't have short ones, postgres doesn't have
>   enough long ones, etc.
2007-01-06 22:18:24 +00:00
Bruce Momjian
147f2e916c Add:
> 	o Consider parsing the -c string into individual queries so each
> 	  is run in its own transaction
>
> 	o Consider disallowing multiple queries in PQexec() as an
> 	  additional barrier to SQL injection attacks
2007-01-06 21:58:22 +00:00
Bruce Momjian
f0f4a6d781 Apply fix so pow() and exp() ERANGE is used only if result is not 0. 2007-01-06 20:21:29 +00:00
Bruce Momjian
282f7f2eac Already done in 8.2:
< * Allow CREATE INDEX to take an additional parameter for use with
<   special index types
2007-01-06 20:00:53 +00:00
Bruce Momjian
bd87cd5ffb Move INDEX inheritance out into a separate section:
< * Allow inherited tables to inherit index, UNIQUE constraint, and primary
<   key, foreign key
< * UNIQUE INDEX on base column not honored on INSERTs/UPDATEs from
<   inherited table:  INSERT INTO inherit_table (unique_index_col) VALUES
<   (dup) should fail
<
<   The main difficulty with this item is the problem of creating an index
<   that can span more than one table.
<
< * Allow SELECT ... FOR UPDATE on inherited tables
> * Inheritance
>
> 	o Allow inherited tables to inherit indexes, UNIQUE constraints,
> 	  and primary/foreign keys
> 	o Honor UNIQUE INDEX on base column in INSERTs/UPDATEs
> 	  on inherited table, e.g.  INSERT INTO inherit_table
> 	  (unique_index_col) VALUES (dup) should fail
>
> 	  The main difficulty with this item is the problem of
> 	  creating an index that can span multiple tables.
>
> 	o Allow SELECT ... FOR UPDATE on inherited tables
>
>
>
2007-01-06 20:00:10 +00:00
Bruce Momjian
9cfcfd7c22 Done:
> * -Allow the pg_xlog directory location to be specified during initdb
2007-01-06 19:41:23 +00:00
Bruce Momjian
c3578a68f8 Allow initdb to specify the pg_xlog directory.
Euler Taveira de Oliveira
2007-01-06 19:40:00 +00:00
Peter Eisentraut
19749fb0cf Replace xmlroot with a properly functioning version that parses the value,
sets the items, and serializes the value back (rather than adding an
arbitrary number of XML preambles as before).

The libxml memory management via palloc had to be disabled because it
crashes when libxml tries to access memory that was helpfully freed
earlier by PostgreSQL.  This needs further thought.
2007-01-06 19:18:36 +00:00
Tom Lane
063560bb8e Fix filtered_base_yylex() to save and restore base_yylval and base_yylloc
properly when doing a lookahead.  The lack of this was causing various
interesting misbehaviors when one tries to use "with" as a plain identifier.
2007-01-06 19:14:17 +00:00
Bruce Momjian
e85ef6e51e Document problems with release links in early branches. 2007-01-06 15:19:45 +00:00
Bruce Momjian
e80b0bd69d Check for ERANGE in exp() as well.
Improve release docs for ecpg regression tests.
2007-01-06 15:18:03 +00:00
Bruce Momjian
19ce06b91b Improve dpow() check for ERANGE overflow for HPPA. 2007-01-06 04:14:55 +00:00
Tom Lane
b2965b9fce Put back ERANGE test in dpow(). There are platforms that need this,
like my HPPA ...
2007-01-06 02:28:38 +00:00
Bruce Momjian
561b4bae78 Document that we need to update the ecpg regression files when we update
the library version number.
2007-01-06 00:25:11 +00:00
Bruce Momjian
9b1854f16e Update ecpg regresison output for new library version number. 2007-01-05 22:43:17 +00:00
Tom Lane
07a5a4b21e Minor copy-editing for release note updates. 2007-01-05 22:34:35 +00:00
Bruce Momjian
29dccf5fe0 Update CVS HEAD for 2007 copyright. Back branches are typically not
back-stamped for this.
2007-01-05 22:20:05 +00:00
Bruce Momjian
7e3c689fd3 Update copyright script, report year used 2007-01-05 21:29:20 +00:00
Bruce Momjian
5a2a527bb5 Modify copyright script to pull current year from date. 2007-01-05 21:09:53 +00:00
Bruce Momjian
c30a945c3d Update Japanese FAQ. 2007-01-05 20:56:56 +00:00
Bruce Momjian
1c3b43cddd Stamp major release 8.3.0, and increment library version numbers. 2007-01-05 20:54:43 +00:00
Bruce Momjian
b358d9cf40 Update for release 8.2.1. 2007-01-05 20:40:30 +00:00
Bruce Momjian
281ae80f2a Create release notes for all back-branch relases on 2007-01-08. 2007-01-05 20:05:02 +00:00
Andrew Dunstan
226e9fffc8 Call setrlimit if possible in pg_regress to allow core file generation, and provide a switch for similar behaviour in pg_ctl. 2007-01-05 16:17:55 +00:00
Bruce Momjian
138668ca37 Update float dpow() comment about whick platforms had issues with Nan.
Stefan Kaltenbrunner
2007-01-05 03:19:26 +00:00