process directly. Some parameters can only be set at server start;
any changes to their entries in the configuration file will be ignored
until the server is restarted.
> >> have to accept a full table scan when locating records.
> >
> > It indexes them, but "is null" is not an indexable operator, so you
> > can't directly solve the above with a 3-column index. What you can do
> > instead is use a partial index, for instance
> >
> > create index i on CUSTOMER.WCCustOrderStatusLog (WCOrderStatusID)
> > where Acknowledged is null and Processing is null;
>
> That's a very nifty trick and exactly the sort of answer I was after!
Add CREATE INDEX doc mention of using partial indexes for IS NULL
indexing; idea from Tom.
reference DEALLOCATE in any way. It points to EXECUTE, but not to
DEALLOCATE. Suggested fix:
... This also means that a single prepared statement cannot be used by
multiple simultaneous database clients; however, each client can create
their own prepared statement to use. The prepared statement can be
manually cleaned up using the DEALLOCATE command.
James Robinson
o -Allow dump/load of CSV format
This adds new keywords to COPY and \copy:
CSV - enable CSV mode (comma separated variable)
QUOTE - specify quote character
ESCAPE - specify escape character
FORCE - force quoting of specified column
LITERAL - suppress null comparison for columns
Doc changes included. Regression updates coming from Andrew.
"millennium" date part implementation in postgresql, both in the code
and the documentation, so that it conforms to the official definition.
If you do not agree with the official definition, please send your
complaint to "pope@vatican.org". I'm not responsible for them;-)
With the previous version, the centuries and millenniums had a wrong
number and started the wrong year. Moreover century number 0, which does
not exist in reality, lasted 200 years. Also, millennium number 0 lasted
2000 years.
If you want postgresql to have it's own definition of "century" and
"millennium" that does not conform to the one of the society, just give
them another name. I would suggest "pgCENTURY" and "pgMILLENNIUM";-)
IMO, if someone may use the options, it means that postgresql is used for
historical data, so it make sense to have an historical definition. Also,
I just want to divide the year by 100 or 1000, I can do that quite easily.
BACKWARD INCOMPATIBLE CHANGE
Fabien Coelho - coelho@cri.ensmp.fr
< * Allow LOCALE on a per-column basis, default to ASCII
> * Allow locale to be set at database creation
> * Allow locale on a per-column basis, default to ASCII
> * Optimize locale to have minimal performance impact when not used (Peter E)
105d106
< * Optimize locale to have minimal performance impact when not used (Peter E)
111d111
< * Allow locale to be set at database creation
> >>with allowed values of "all, mod, ddl, none" with default "none".
OK, here is a patch that implements #1. Here is sample output:
test=> set client_min_messages = 'log';
SET
test=> set log_statement = 'mod';
SET
test=> select 1;
?column?
----------
1
(1 row)
test=> update test set x=1;
LOG: statement: update test set x=1;
ERROR: relation "test" does not exist
test=> update test set x=1;
LOG: statement: update test set x=1;
ERROR: relation "test" does not exist
test=> copy test from '/tmp/x';
LOG: statement: copy test from '/tmp/x';
ERROR: relation "test" does not exist
test=> copy test to '/tmp/x';
ERROR: relation "test" does not exist
test=> prepare xx as select 1;
PREPARE
test=> prepare xx as update x set y=1;
LOG: statement: prepare xx as update x set y=1;
ERROR: relation "x" does not exist
test=> explain analyze select 1;;
QUERY PLAN
------------------------------------------------------------------------------------
Result (cost=0.00..0.01 rows=1 width=0) (actual time=0.006..0.007 rows=1 loops=1)
Total runtime: 0.046 ms
(2 rows)
test=> explain analyze update test set x=1;
LOG: statement: explain analyze update test set x=1;
ERROR: relation "test" does not exist
test=> explain update test set x=1;
ERROR: relation "test" does not exist
It checks PREPARE and EXECUTE ANALYZE too. The log_statement values are
'none', 'mod', 'ddl', and 'all'. For 'all', it prints before the query
is parsed, and for ddl/mod, it does it right after parsing using the
node tag (or command tag for CREATE/ALTER/DROP), so any non-parse errors
will print after the log line.
results with tuples as ordinary varlena Datums. This commit does not
in itself do much for us, except eliminate the horrid memory leak
associated with evaluation of whole-row variables. However, it lays the
groundwork for allowing composite types as table columns, and perhaps
some other useful features as well. Per my proposal of a few days ago.
---------------------------------------------------------------------------
1. In keeping with the recent discussion that there should be more
said about views, stored procedures, and triggers, in the tutorial, I
have added a bit of verbiage to that end.
2. Some formatting changes to the datetime discussion, as well as
addition of a citation of a relevant book on calendars.
Christopher Browne
said about views, stored procedures, and triggers, in the tutorial, I
have added a bit of verbiage to that end.
2. Some formatting changes to the datetime discussion, as well as
addition of a citation of a relevant book on calendars.
Christopher Browne
is measured in kilobytes and checked against actual physical execution
stack depth, as per my proposal of 30-Dec. This gives us a fairly
bulletproof defense against crashing due to runaway recursive functions.
remove separate implementation of ALTER TABLE SET WITHOUT OIDS in favor
of doing a regular DROP. Also, cause CREATE TABLE to account completely
correctly for the inheritance status of the OID column. This fixes
problems with dropping OID columns that have dependencies, as noted by
Christopher Kings-Lynne, as well as making sure that you can't drop an
OID column that was inherited from a parent.
listen_addresses parameter, as per recent discussion. The default behavior
is now to listen on localhost, which eliminates the need for the -i
postmaster switch in many scenarios.
Andrew Dunstan
types. Update the regression tests and the documentation to reflect
this. Remove the UNSAFE_FLOATS #ifdef.
This is only half the story: we still unconditionally reject
floating point operations that result in +/- infinity. See
recent thread on -hackers for more information.
#log_line_prefix = '' # e.g. '<%u%%%d> '
# %u=user name %d=database name
# %r=remote host and port
# %p=PID %t=timestamp %i=command tag
# %c=session id %l=session line number
# %s=session start timestamp
# %x=stop here in non-session processes
# %%='%'
Andrew Dunstan
support for 'week' within the date_trunc function.
Within the patch I added a couple of test cases and associated target
output, and changed the documentation to add 'week' appropriately.
Robert Creager
+extern Oid SPI_getargtypeid(void *plan, int argIndex);
+extern int SPI_getargcount(void *plan);
+extern bool SPI_is_cursor_plan(void *plan);
Thomas Hallgren
float8 types. This begins the deprecation of this feature: in 7.6,
this input will be rejected.
Also added a new error code for warnings about deprecated features,
and updated the regression tests.
build for some versions of OpenJade (unfortunately, my local version of
OpenJade didn't report the error...) -- thanks to Andrew Dunstan for
the report.
comments, make some unrelated improvements to the functions
documentation, and perform some minor consistency cleanup
elsewhere. Original initcap() change from Dennis B., additional
changes by Neil C.
number of openable files and the number already opened. This eliminates
depending on sysconf(_SC_OPEN_MAX), and allows much saner behavior on
platforms where open-file slots are used up by semaphores.
vacuum delay feature, including updating the docs for Tom's recent
improvements. There is still more work to be done here: for example,
adding some more information on the practical use of cost-based
vacuum delay to the "maintenance" section would probably be a good
idea.
This commit teaches ANALYZE to store such stats in pg_statistic, but
nothing is done yet about teaching the planner to use 'em.
Also, repair longstanding oversight in separate ANALYZE command: it
updated the pg_class.relpages and reltuples counts for the table proper,
but not for indexes.
> momjian@svr1.postgresql.org (Bruce Momjian) writes:
>> someone asked me about the FK deadlock fix, mentioned in the 7.3.3
>> release notes as 3rd change:
>> http://www.postgresql.org/docs/current/static/release-7-3-3.html
>> Actually, that fix was available with 7.4, not 7.3. Don't know if we can
>> retroactively change the release-notes though.
>
> This is completely erroneous, please undo it.
>
> 2003-05-21 14:14 tgl
>
> * src/: backend/utils/adt/ri_triggers.c,
> test/regress/expected/foreign_key.out (REL7_3_STABLE): Back-patch
> Jan's fix to avoid primary key lookup (and lock) if foreign key
> does not change on UPDATE.
Oh ... didn't know that you did a backpatch. Sorry
Jan
someone asked me about the FK deadlock fix, mentioned in the 7.3.3
release notes as 3rd change:
http://www.postgresql.org/docs/current/static/release-7-3-3.html
Actually, that fix was available with 7.4, not 7.3. Don't know if we can
retroactively change the release-notes though.
.< * Improve speed with indexes (perhaps recreate index instead) [vacuum]
> * Improve speed with indexes (perhaps recreate index instead)
369c369
< lock and truncate table [vacuum]
> lock and truncate table
371c371
< rather than in /contrib [vacuum]
> rather than in /contrib
On Mon, 2004-01-26 at 21:28, Peter Eisentraut wrote:
> Christophe Combelles wrote:
> > At the bottom of this doc file :
> > file:///usr/share/doc/postgresql-doc/html/tutorial-createdb.html
> > "and it also happens that that user always has permission"
> > ---- x2
> The first "that" serves as a conjuction, the second one serves as an
> article. Looks correct to me.
A better workaround for the sentence would be something like:
"and it also happens that the user always has permission"
Looks easier to read, I think.
Enver ALTIN (a.k.a. skyblue)
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.
to handle memory management for char pointers returned by libpq functions.
Original patch by Gavin Sherry, some tweaking and consistency improvements
by Neil Conway.
that it's good to join where there are join clauses rather than where there
are not. Also enable it to generate bushy plans at need, so that it doesn't
fail in the presence of multiple IN clauses containing sub-joins. These
changes appear to improve the behavior enough that we can substantially reduce
the default pool size and generations count, thereby decreasing the runtime,
and yet get as good or better plans as we were getting in 7.4. Consequently,
adjust the default GEQO parameters. I also modified the way geqo_effort is
used so that it affects both population size and number of generations;
it's now useful as a single control to adjust the GEQO runtime-vs-plan-quality
tradeoff. Bump geqo_threshold to 12, since even with these changes GEQO
seems to be slower than the regular planner at 11 relations.
default value for geqo_effort is supposed to be 40, not 1. The actual
'genetic' component of the GEQO algorithm has been practically disabled
since 7.1 because of this mistake. Improve documentation while at it.
source the \copy came from. Also, fix prompting logic so that initial
and per-line prompts appear for all cases of reading from an interactive
terminal. Patch by Mark Feit, with some kibitzing by Tom Lane.
characters, as for fancy colorized prompts. This was nearly a direct
lift from bash-2.05b's lib/readline/display.c, per guidance from Chet Ramey.
Reece Hart
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.
ignore SIGPIPE from send() in libpq, but terminate on any other SIGPIPE,
unless the user installs their own signal handler.
This is a minor fix because the only time you get SIGPIPE from libpq's
send() is when the backend dies.
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.
> > needed, and other people in the past asked about it too.
>
> It is in Oracle, but you aren't exactly on the spot. It should be
>
> IYYY - 4 digits ('2003')
> IYY - 3 digits ('003')
> IY - 2 digits ('03')
> I - 1 digit ('3')
Here is an updated patch that does that.
Kurt Roeckx
that were broken, try to make layout of s_lock.h entries consistent,
use HAVE_SPINLOCKS in preference to HAS_TEST_AND_SET everywhere outside
s_lock.h itself.
> 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.
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
pg_depend to determine a safe dump order. Defaults and check constraints
can be emitted either as part of a table or domain definition, or
separately if that's needed to break a dependency loop. Lots of old
half-baked code for controlling dump order removed.
< * Change factorial to return a numeric
> * -Change factorial to return a numeric (Gavin)
258c258
< * Allow psql \du to show groups, and add \dg for groups
> * -Allow psql \du to show groups, and add \dg for groups
proposal for eventually deprecating OIDs on user tables that I posted
earlier to pgsql-hackers. pg_dump now always specifies WITH OIDS or
WITHOUT OIDS when dumping a table. The documentation has been updated.
Neil Conway
< manuals (Rory)
> manuals
496c496
< * Jan is Jan Wieck <JanWieck@Yahoo.com> of PeerDirect Corp.
> * Jan is Jan Wieck <JanWieck@Yahoo.com> of Afilias, Inc.
--with-openssl options. This creates too much risk to pick up the wrong
directory accidentally (for example when there are lib64 directories), and
does not really help much with contemporary installation layouts.
back --infodir, which several automatic build environments expect to exist.
Add --without-docdir to prevent installation of documentation, which is
helpful for things like RPM that have their own method of installing
documentation.
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
< A dash (-) marks changes that will appear in the upcoming 7.4 release.
> A dash (-) marks changes that will appear in the upcoming 7.5 release.
437c437
< * Use background process to write dirty shared buffers to disk
> * -Use background process to write dirty shared buffers to disk
< * -Allow elog() to return error codes, module name, file name, line
< number, not just messages (Tom)
< * -Add error codes (Tom)
< * -Make error messages more consistent
40d35
< * -Add GUC log_statement_and_duration to print statement and >= min duration
51d45
< * -Allow easy display of usernames in a group
53d46
< * -Add start time to pg_stat_activity
55d47
< * -Have standalone backend read postgresql.conf (Tom)
59d50
< * -Allow CIDR format to be used in pg_hba.conf
74d64
< * -Add IPv6 capability to INET/CIDR types
77d66
< * -Change NUMERIC data type to use base 10,000 internally
82d70
< * -Add GUC variables to control floating number output digits (Pedro Ferreira)
90,92d77
< * -Allow current datestyle to restrict dates; prevent month/day swapping
< from making invalid dates valid
< * -Prevent month/day swapping of ISO dates to make invalid dates valid
102d86
< o -Allow arrays to be ORDER'ed
104d87
< o -Support construction of array result values in expressions (Joe)
128d110
< * -Remove Cyrillic recode support
146,147d127
< * -Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
< fails index can't store constant parameters
155d134
< * -Add btree index support for reltime, tinterval, regproc (Tom)
157d135
< * -Certain indexes will not shrink, e.g. indexes on ever-increasing
161d138
< * -Allow LIKE indexing optimization for non-ASCII locales using special index
173d149
< * -Improve concurrency of hash indexes (Tom)
181d156
< * -Allow LIMIT/OFFSET to use expressions (Tom)
187d161
< * -Return proper effected tuple count from complex commands [return]
191d164
< * -Make a transaction-safe TRUNCATE (Rod)
196,197d168
< * -Allow UPDATE to use SET col = DEFAULT
< * -Add config variable to prevent auto-adding missing FROM-clause tables
199d169
< * -Have SELECT '13 minutes'::interval display zero seconds in ISO datestyle
224,225d193
< o -Add ALTER TABLE tab SET WITHOUT OIDS (Rod)
< o -Add ALTER SEQUENCE to modify min/max/increment/cache/cycle values
237d204
< o -Allow CLUSTER to cluster all tables (Alvaro Herrera)
248d214
< o -MOVE 0 should not move to end of cursor (Bruce)
252d217
< o -Allow cursors outside transactions
264,265d228
< o -Allow EXPLAIN EXECUTE to see prepared plans
< o -Allow SHOW of some non-modifiable variables, like pg_controldata
280d242
< o -Allow array declarations and other data types in PL/PgSQL DECLARE
282,283d243
< o -Make PL/PgSQL %TYPE schema-aware
< o -Allow PL/PgSQL to support array element assignment (Joe)
294,298d253
< * -Allow psql to show transaction status if backend protocol changes made
< * -Add schema, cast, and conversion backslash commands to psql (Christopher)
< * -Allow pg_dump to dump a specific schema (Neil Conway)
< * -Allow psql to do table completion for SELECT * FROM schema_part and
< table completion for SELECT * FROM schema_name.
300,302d254
< * -Allow SSL-enabled clients to turn off SSL transfers
< * -Modify pg_get_triggerdef() to take a boolean to pretty-print,
< and use that as part of pg_dump along with psql
327d278
< o -Add SQLSTATE
330d280
< o -Make casts work in variable initializations
334,336d283
< o -Allow multi-threaded use of SQLCA
< o -Understand structure definitions outside a declare section
< o -Allow :var[:index] or :var[<integer>] as cvariable for an array var
356d302
< * -Support statement-level triggers (Neil)
460,461d405
< * -Add checkpoint_min_warning postgresql.conf option to warn about checkpoints
< that are too frequent (Bruce)
472,476d415
< * -Improve Subplan list handling
< * -Allow Subplans to use efficient joins(hash, merge) with upper variable
< * -Add hash for evaluating GROUP BY aggregates (Tom)
< * -Allow merge and hash joins on expressions not just simple variables (Tom)
< * -Make IN/NOT IN have similar performance to EXISTS/NOT EXISTS (Tom)
480d418
< * -Inline simple SQL functions to avoid overhead (Tom)
495d432
< * -Get faster regex() code from Henry Spencer <henry@zoo.utoronto.ca>
511,512d447
< * -Modify regression tests to prevent failures do to minor numeric rounding
< * -Add OpenBSD's getpeereid() call for local socket authentication
537,542d471
< o -Show transaction status in psql
< o -Allow binding of query parameters, support for prepared queries
< o -Remove hard-coded limits on user/db/password names
< o -Remove unused elements of startup packet (unused, tty, passlength)
< o -Fix COPY/fastpath protocol
< o -Error codes
544d472
< o -Special passing of binary values in platform-neutral format (bytea?)
547d474
< o -Report server version number, database encoding, client encoding
which had been unintentionally broken by recent changes to tighten up the
DateStyle rules for all-numeric date input. Add documentation and
regression tests for this, too.
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.
instructions were way out of date and incorrect. Installing Postgres
from Cygwin is easier these days than the FAQ would imply.
This patch already includes Andrew's previous patch.
Christopher Kings-Lynne
> * Allow CREATE TABLE foo (f1 INT CHECK (f1 > 0) CHECK (f1 < 10)) to work
> by searching for non-conflicting constraint names, and prefix with table name
process the command as though it were issued by the object owner.
This prevents creating weird scenarios in which the same privileges
may appear to flow from different sources, and ensures that a superuser
can in fact revoke all privileges if he wants to. In particular this
means that the regression tests work when run by a superuser other than
the original bootstrap userid. Per report from Larry Rosenman.
language handler to the 'Internals' area, per my proposal of yesterday.
Clean up the trigger documentation a bit. Push SPI chapter to the end
of its part, and reorder the Internals chapters into what seems a more
sensible order (at the moment anyway).
< * Allow INET subnet tests using non-constants
> * Allow INET subnet tests to use indexes
101a102
> o Allow MIN()/MAX() on arrays
144c145
< * Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
> * -Allow CREATE INDEX zman_index ON test (date_trunc( 'day', zman ) datetime_ops)
166c167
< * Improve handling of index scans for NULL
> * Allow use of indexes to search for NULLs
203a205
> * Add optional textual message to NOTIFY
252c254
< o Add SET SCHEMA
> o Add SET PATH for schemas
297a300
> * Allow fastpast to pass values in portable format
344a348
> * Allow statement-level triggers to access modified rows
526d529
< o Add optional textual message to NOTIFY
530d532
< o Allow fastpast to pass values in portable format
533c535
< o Special passing of binary values in platform-neutral format (bytea?)
> o -Special passing of binary values in platform-neutral format (bytea?)
<listitem><para> Dollar sign (<literal>$</>) is no longer allowed
in operator names</para></listitem>
<listitem><para> Dollar sign (<literal>$</>) can be a non-first
character in identifiers</para></listitem>