< * Move some /contrib modules out to their own project sites
<
< Particularly, move GPL-licensed /contrib/userlock and
< /contrib/dbmirror/clean_pending.pl.
<
the XmlExpr code in various lists, use a representation that has some hope
of reverse-listing correctly (though it's still a de-escaping function
shy of correctness), generally try to make it look more like Postgres
coding conventions.
cases. Operator classes now exist within "operator families". While most
families are equivalent to a single class, related classes can be grouped
into one family to represent the fact that they are semantically compatible.
Cross-type operators are now naturally adjunct parts of a family, without
having to wedge them into a particular opclass as we had done originally.
This commit restructures the catalogs and cleans up enough of the fallout so
that everything still works at least as well as before, but most of the work
needed to actually improve the planner's behavior will come later. Also,
there are not yet CREATE/DROP/ALTER OPERATOR FAMILY commands; the only way
to create a new family right now is to allow CREATE OPERATOR CLASS to make
one by default. I owe some more documentation work, too. But that can all
be done in smaller pieces once this infrastructure is in place.
operator strategy numbers, ie, GiST and GIN. This is almost cosmetic
enough to not need a catversion bump, but since the opr_sanity regression
test has to change in sync with the catalog entry, I figured I'd better
do one.
properly.
Remove SGML docs about openjade performance patch, and instead add
comment in style sheet where indenting code is commented out.
Backpatch to 8.2.X.
>
> * Embedded server (not wanted)
>
> While PostgreSQL clients runs fine limited-resource environments, the
> server requires multiple processes and a stable pool of resources to
> run reliabily and efficiently. Stripping down the PostgreSQL server
> to run in the same process address space as the client application
> would add too much complexity and failure cases.
< * Have EXPLAIN ANALYZE highlight poor optimizer estimates
> * Have EXPLAIN ANALYZE issue NOTICE messages when the estimated and
> actual row counts differ by a specified percentage
in normal operation, and we can avoid rewriting pg_control at every log
segment switch if we don't insist that these values be valid. Reducing
the number of pg_control updates is a good idea for both performance and
reliability. It does make pg_resetxlog's life a bit harder, but that seems
a good tradeoff; and anyway the change to pg_resetxlog amounts to automating
something people formerly needed to do by hand, namely look at the existing
pg_xlog files to make sure the new WAL start point was past them.
In passing, change the wording of xlog.c's "database system was interrupted"
messages: describe the pg_control timestamp as "last known up at" rather than
implying it is the exact time of service interruption. With this change the
timestamp will generally be the time of the last checkpoint, which could be
many minutes before the failure; and we've already seen indications that
people tend to misinterpret the old wording.
initdb forced due to change in pg_control layout. Simon Riggs and Tom Lane
identify long-running transactions. Since we already need to record
the transaction-start time (e.g. for now()), we don't need any
additional system calls to report this information.
Catversion bumped, initdb required.
locks that logically should not be released, because when a subtransaction
overwrites XMAX all knowledge of the previous lock state is lost. It seems
unlikely that we will be able to fix this before 8.3...
subtransaction are released if the subtransaction aborts --- in user-level
terminology, this means either rolling back to a savepoint or escaping from
a plpgsql exception block. Per recent suggestion from Simon.
vacuum/analyze timestamp columns at the end, rather than at a random
spot in the middle as in the original patch. This was deemed more usable
as well as less likely to break existing application code. initdb forced
accordingly. In passing, remove former kluge for initializing
pg_stat_file()'s pg_proc entry --- bootstrap mode was fixed recently
so that this can be done without any hacks, but I overlooked this usage.
This patch, against xfunc.sgml, adds a new subsection 33.9.12, Shared
Memory and LWLocks in C-Language Functions, describing how shared memory
and lwlocks may be requested by C add-in functions.
Marc Munro
of caveats in different places, but close together. One called caveats,
one not. That looks like it just led to somebody not reading some
appropriate caveats in the second group of caveats (on -admin).
Simon Riggs
want to direct MSI downloads to main download site, NT4 not supported
anymore, msvc build env in progress, pgsql-hackers-win32 is no more.
Magnus Hagander
the variabelist with a more concise table, add a URL for each project,
remove some orphaned projects, add PL/Py, and various other changes.
Initial patch from Robert Treat, subsequent work by Neil Conway.
that discusses CVS. Remove the recommendation to use cvs 1.10. Remove
discussion of alleged CVSup binaries on postgresql.org, because they
have not existed for several years. Remove discussion of how to
build cvsup from source because the existing text is outdated, and
more accurate information is available from the CVSup homepage.
consistently capitalize the content of the "Description" column but do
not include a terminating period, as is the convention elsewhere in the
docs. Also, remove the "References" column from catalog that do not
have any referencing columns, for the sake of brevity. Make various
other SGML and grammar fixes.
in PITR scenarios. We now WAL-log the replacement of old XIDs with
FrozenTransactionId, so that such replacement is guaranteed to propagate to
PITR slave databases. Also, rather than relying on hint-bit updates to be
preserved, pg_clog is not truncated until all instances of an XID are known to
have been replaced by FrozenTransactionId. Add new GUC variables and
pg_autovacuum columns to allow management of the freezing policy, so that
users can trade off the size of pg_clog against the amount of freezing work
done. Revise the already-existing code that forces autovacuum of tables
approaching the wraparound point to make it more bulletproof; also, revise the
autovacuum logic so that anti-wraparound vacuuming is done per-table rather
than per-database. initdb forced because of changes in pg_class, pg_database,
and pg_autovacuum catalogs. Heikki Linnakangas, Simon Riggs, and Tom Lane.
command strings inserts relative not absolute path of file to process.
This is a side-effect of 2005-07-04 change that makes the server use
relative paths in general. Noted by Bernd Helmle.
reference pages documenting that these commands cannot be used within
a transaction block. Also make some minor improvements to the psql
reference page. Patch from Simon Riggs, minor editorialization by
myself.
< * Improve port/qsort() to handle sorts with 50% unique and 50% duplicate
< value [qsort]
<
< This involves choosing better pivot points for the quicksort.
<
timezone actually has a daylight-savings rule. This avoids breaking
cases that used to work because they went through the DecodePosixTimezone
code path. Per contrib regression failures (mea culpa for not running
those yesterday...). Also document the already-applied change to allow
GMT offsets up to 14 hours.
input routines. Remove the former "DecodePosixTimezone" function in favor of
letting the zic code handle POSIX-style zone specs (see tzparse()). In
particular this means that "PST+3" now means the same as "-03", whereas it
used to mean "-11" --- the zone abbreviation is effectively just a noise word
in this syntax. Make sure that all named and POSIX-style zone names will be
parsed as a single token. Fix long-standing bogosities in printing and input
of fractional-hour timezone offsets (since the tzparse() code will accept
these, we'd better make 'em work). Also correct an error in the original
coding of the zic-zone-name patch: in "timestamp without time zone" input,
zone names are supposed to be allowed but ignored, but the coding was such
that the zone changed the interpretation anyway.
example SET TIME ZONE 'america/new_york' works now. This seems a good
idea on general user-friendliness grounds, and is part of the solution
to the timestamp-input parsing problems I noted recently.
one of the program's core data structures, make use of the existing
ability to selectively exclude TOC items by ID. Slightly more code but
much less likely to create future maintenance problems.
to process all inclusion switches then all exclusion switches, so that the
behavior is independent of switch ordering.
Use of -T does not cause non-table objects to be suppressed. And
the patterns are now interpreted the same way psql's \d commands do it,
rather than as pure regex commands; this allows for example -t schema.tab
to do what it should have been doing all along. Re-enable the --blobs
switch to do something useful, ie, add back blobs into a dump they were
otherwise suppressed from.
portable long options. But we have had portable long options for a long
time now, so this is obsolete. Now people have added options which *only*
work with -X but not as regular long option, so I'm putting a stop to this:
-X is deprecated; it still works, but it has been removed from the
documentation, and please don't add more of them.
max_stack_depth is not set to an unsafe value.
This commit also provides configure-time checking for <sys/resource.h>,
and cleans up some perhaps-unportable code associated with use of that
include file and getrlimit().
> * Allow more complex user/database default GUC settings
> Currently, ALTER USER and ALTER DATABASE support per-user and
> per-database defaults. Consider adding per-user-and-database
> defaults so things like search_path can be defaulted for a
> specific user connecting to a specific database.
>
>
present; intervening positions are filled with nulls. This behavior
is required by SQL99 but was not implementable before 8.2 due to lack
of support for nulls in arrays. I have only made it work for the
one-dimensional case, which is all that SQL99 requires. It seems quite
complex to get it right in higher dimensions, and since we never allowed
extension at all in higher dimensions, I think that must count as a
future feature addition not a bug fix.
the SQL spec, viz IS NULL is true if all the row's fields are null, IS NOT
NULL is true if all the row's fields are not null. The former coding got
this right for a limited number of cases with IS NULL (ie, those where it
could disassemble a ROW constructor at parse time), but was entirely wrong
for IS NOT NULL. Per report from Teodor.
I desisted from changing the behavior for arrays, since on closer inspection
it's not clear that there's any support for that in the SQL spec. This
probably needs more consideration.
< o Add command to archive partially filled write-ahead logs? [pitr]
<
< Currently only full WAL files are archived. This means that the
< most recent transactions aren't available for recovery in case
< of a disk failure.
<
Reorder:
< o %Create dump tool for write-ahead logs for use in determining
< transaction id for point-in-time recovery
> o %Create dump tool for write-ahead logs for use in determining
> transaction id for point-in-time recovery
not in the character set supported by DocBook nor standard HTML. (Sorry
Volkan.) Also replace random character-set references by a pointer to
the actual standard.
