Tom Lane [Fri, 16 May 2008 18:34:51 +0000 (18:34 +0000)]
Suppress a possibly-uninitialized-variable warning. (I'm only seeing it
on Apple's gcc and not my other machines, but still it seems worth
getting rid of.)
Magnus Hagander [Fri, 16 May 2008 18:30:53 +0000 (18:30 +0000)]
Implement error checking for pthreads calls in thread-safe mode. They really
should always succeed, but in the likely event of a failure we would
previously fall through *without locking* - the new code will exit(1).
Printing the error message on stderr will not work for all applications, but
it's better than nothing at all - and our API doesn't provide a way to return
the error to the caller.
Tom Lane [Thu, 15 May 2008 17:37:49 +0000 (17:37 +0000)]
Add code to eval_const_expressions() to support const-simplification of
CoerceViaIO nodes. This improves the ability of the planner to deal with
cases where the node input is a constant. Per bug #4170.
Tom Lane [Wed, 14 May 2008 19:10:29 +0000 (19:10 +0000)]
Move the "instr_time" typedef and associated macros into a new header
file portability/instr_time.h, and add a couple more macros to eliminate
some abstraction leakage we formerly had. Also update psql to use this
header instead of its own copy of nearly the same code.
This commit in itself is just code cleanup and shouldn't change anything.
It lays some groundwork for the upcoming function-stats patch, though.
Magnus Hagander [Wed, 14 May 2008 14:02:57 +0000 (14:02 +0000)]
Remove the special variable for open_sync_bit used in O_SYNC and O_DSYNC
modes, replacing it with a call to a function that derives it from the
sync_method variable, now that it has distinct values for these two cases.
This means that assign_xlog_sync_method() no longer changes any settings,
thus fixing the bug introduced in the change to use a guc enum for
wal_sync_method.
Tom Lane [Tue, 13 May 2008 22:10:30 +0000 (22:10 +0000)]
Improve plpgsql's RAISE command. It is now possible to attach DETAIL and
HINT fields to a user-thrown error message, and to specify the SQLSTATE
error code to use. The syntax has also been tweaked so that the
Oracle-compatible case "RAISE exception_name" works (though you won't get a
very nice error message if you just write that much). Lastly, support
the Oracle-compatible syntax "RAISE" with no parameters to re-throw
the current error from within an EXCEPTION block.
In passing, allow the syntax SQLSTATE 'nnnnn' within EXCEPTION lists,
so that there is a way to trap errors with custom SQLSTATE codes.
Alvaro Herrera [Mon, 12 May 2008 22:59:58 +0000 (22:59 +0000)]
Improve psql's internal print.c code by introducing an actual print API.
Provides for better code readability, but mainly this is infrastructure changes
to allow further changes such as arbitrary footers on printed tables. Also,
the translation status of each element in the table is more easily customized.
Alvaro Herrera [Mon, 12 May 2008 20:02:02 +0000 (20:02 +0000)]
Improve snapshot manager by keeping explicit track of snapshots.
There are two ways to track a snapshot: there's the "registered" list, which
is used for arbitrary long-lived snapshots; and there's the "active stack",
which is used for the snapshot that is considered "active" at any time.
This also allows users of snapshots to stop worrying about snapshot memory
allocation and freeing, and about using PG_TRY blocks around ActiveSnapshot
assignment. This is all done automatically now.
As a consequence, this allows us to reset MyProc->xmin when there are no
more snapshots registered in the current backend, reducing the impact that
long-running transactions have on VACUUM.
Alvaro Herrera [Mon, 12 May 2008 00:00:54 +0000 (00:00 +0000)]
Restructure some header files a bit, in particular heapam.h, by removing some
unnecessary #include lines in it. Also, move some tuple routine prototypes and
macros to htup.h, which allows removal of heapam.h inclusion from some .c
files.
For this to work, a new header file access/sysattr.h needed to be created,
initially containing attribute numbers of system columns, for pg_dump usage.
While at it, make contrib ltree, intarray and hstore header files more
consistent with our header style.
Tom Lane [Sat, 10 May 2008 03:31:58 +0000 (03:31 +0000)]
Restore psql's former behavior that padding spaces to the right of the last
output column are not emitted. (That change already caused more noise in
the regression test output files than I would like.) Provide some needed
editorial help for comments, clean up code formatting.
Bruce Momjian [Sat, 10 May 2008 01:40:09 +0000 (01:40 +0000)]
Add URL for:
* Add column to pg_stat_activity that shows the progress of long-running
commands like CREATE INDEX and VACUUM
>
> http://archives.postgresql.org/pgsql-patches/2008-04/msg00203.php
>
Tom Lane [Fri, 9 May 2008 23:32:05 +0000 (23:32 +0000)]
Change the rules for inherited CHECK constraints to be essentially the same
as those for inherited columns; that is, it's no longer allowed for a child
table to not have a check constraint matching one that exists on a parent.
This satisfies the principle of least surprise (rows selected from the parent
will always appear to meet its check constraints) and eliminates some
longstanding bogosity in pg_dump, which formerly had to guess about whether
check constraints were really inherited or not.
The implementation involves adding conislocal and coninhcount columns to
pg_constraint (paralleling attislocal and attinhcount in pg_attribute)
and refactoring various ALTER TABLE actions to be more like those for
columns.
Tom Lane [Fri, 9 May 2008 15:53:07 +0000 (15:53 +0000)]
Give a warning if -s switch is used with a non-custom pgbench test.
Also, clean up the code that assigned the scale into :scale variables.
Greg Smith and Tom Lane
Fix incorrect archive truncation point calculation in the %r recovery_command
parameter. This fixes bug 4137 reported by Wojciech Strzalka, where a WAL
file is deleted too early when starting the recovery of a warm standby server.
Also add a sanity check in pg_standby so that it will refuse to delete anything
earlier than the file being restored, and improve the debug message in case
nothing is deleted.
Simon Riggs. Backpatch to 8.3, which is where %r was introduced.
Tom Lane [Fri, 9 May 2008 05:25:04 +0000 (05:25 +0000)]
Fix memory stomp that's turning the whole buildfarm pink: you can't hack up
pg_wcsformat without changing pg_wcssize to match. Add some comments to
try to make that clearer, and make a couple other minor editorializations.
Bruce Momjian [Thu, 8 May 2008 02:24:26 +0000 (02:24 +0000)]
Update TODO wording:
< * Improve detection of shared memory segments being used by other
< FreeBSD jails
> * Improve detection of shared memory segments being used by others
> by checking the SysV shared memory field 'nattch'
> http://archives.postgresql.org/pgsql-hackers/2008-01/msg00673.php
Tom Lane [Wed, 7 May 2008 01:46:04 +0000 (01:46 +0000)]
The CONSTROID syscache should show conrelid as a relation OID column.
Not clear that there's any observable bug at present from this omission,
but it seems like something to fix going forward.
Tom Lane [Wed, 7 May 2008 01:04:49 +0000 (01:04 +0000)]
Convert the list of syscache names from a series of #define's into an enum,
to avoid the pain of manually renumbering them anytime we insert another
name in alphabetical order. An excellent idea from Alex Hunsaker and
NikhilS' inherited-constraints patch --- whether or not the rest of that
gets in, this should. Dunno why we never thought of it before.
Tom Lane [Sun, 4 May 2008 16:42:41 +0000 (16:42 +0000)]
Use new cstring/text conversion functions in some additional places.
These changes assume that the varchar and xml data types are represented
the same as text. (I did not, however, accept the portions of the proposed
patch that wanted to assume bytea is the same as text --- tgl.)
Tom Lane [Sat, 3 May 2008 23:19:20 +0000 (23:19 +0000)]
The 8.2 patch that added support for an alias on the target table of
UPDATE/DELETE forgot to teach ruleutils.c to display the alias.
Per bug #4141 from Mathias Seiler.
Andrew Dunstan [Sat, 3 May 2008 00:24:06 +0000 (00:24 +0000)]
Provide for MSVC config equivalents of recently added configure options. Remove
any hardcoding of those options. Along the way, reorder the expression used to
calculate RELSEG_SIZE to make it slightly clearer. For now wal_segsize is only
allowed to have a value of 1 on Windows - we can relax that when we get full
large file support in the backend.
Tom Lane [Fri, 2 May 2008 19:52:37 +0000 (19:52 +0000)]
Extend yesterday's patch making BLCKSZ and RELSEG_SIZE configurable to also
let XLOG_BLCKSZ and XLOG_SEG_SIZE be set via configure. Per a proposal by
Mark Wong, though I thought it better to call the switches after "wal" rather
than "xlog".