which just indicates that we've reached the end of valid WAL found in
the standby.

backpatched to 8.1, where this first appeared

identify the system time zone setting.  Per recent discussion.

it with the list we have in pgtz.c, showing any differences.

even when the expression is a query that returns no rows.

So far as I can tell, the only caller that actually fails when a garbage
OID is returned is exec_stmt_case(), which is new in 8.4 --- in all other
cases, we might make a useless trip through casting logic, but we won't
fail since the isnull flag will be set.  Hence, backpatch only to 8.4,
just in case there are apps out there that aren't expecting an error to
be thrown if the query returns more or less than one column.  (Which seems
unlikely, since the error would be thrown if the query ever did return a
row; but it's possible there's some never-exercised code out there.)

Per report from Mario Splivalo.

relcache reload works.  In the patched code, a relcache entry in process of
being rebuilt doesn't get unhooked from the relcache hash table; which means
that if a cache flush occurs due to sinval queue overrun while we're
rebuilding it, the entry could get blown away by RelationCacheInvalidate,
resulting in crash or misbehavior.  Fix by ensuring that an entry being
rebuilt has positive refcount, so it won't be seen as a target for removal
if a cache flush occurs.  (This will mean that the entry gets rebuilt twice
in such a scenario, but that's okay.)  It appears that the problem can only
arise within a transaction that has previously reassigned the relfilenode of
a pre-existing table, via TRUNCATE or a similar operation.  Per bug #5412
from Rusty Conover.

Back-patch to 8.2, same as the patch that introduced the problem.
I think that the failure can't actually occur in 8.2, since it lacks the
rd_newRelfilenodeSubid optimization, but let's make it work like the later
branches anyway.

Patch by Heikki, slightly editorialized on by me.

Patch by Simon Riggs & me

Fujii Masao

shared library with the disconnect function in it. Fixes segmentation
fault reported by Jeff Davis.

Fujii Masao

users look at the referenced section for examples, per idea from Greg
Smith.

archiving example, per suggestion from Greg Smith.

after actually removing one, so that if we can't remove segments because
WAL archiving is lagging behind, we don't unnecessarily forbid streaming
the old not-yet-archived segments that are still perfectly valid. Per
suggestion from Fujii Masao.

the calculation, not the end pointer, as pointed out by Fujii Masao.

standby_keep_segments.

doesn't take into account how far the WAL senders are. This way a hung
WAL sender doesn't prevent old WAL segments from being recycled/removed
in the primary, ultimately causing the disk to fill up. Instead add
standby_keep_segments setting to control how many old WAL segments are
kept in the primary. This also makes it more reliable to use streaming
replication without WAL archiving, assuming that you set
standby_keep_segments high enough.

and indentation styles.

to one that's up to date with Windows 2003R2.

Windows timezone name where the information in the registry is
incomplete, instead of aborting.

This fixes cases when the registry information is incomplete for
a timezone that is alphabetically before the one that is in use.

Per report from Alexander Forschner

At present, killing the startup process does not release any locks it holds,
so we must wait to stop the startup and walreceiver processes until all
read-only backends have exited.  Without this patch, the startup and
walreceiver processes never exit, so the server gets permanently stuck in
a half-shutdown state.

Fujii Masao, with review, docs, and comment adjustments by me.

rather than only sort-of working as the previous attempt had left it.
Clean up some unnecessary differences between the way these were coded and
the way the YYYY case was coded.  Update the regression test cases that
proved that it wasn't working.

also makes the parsing a little bit stricter, rejecting garbage after the
parameter value and values with missing ending quotes, for example.

recovery. We might want to relax this in the future, but ThisTimeLineID
isn't currently correct in backends during recovery, so the filename
returned was wrong.

and use cygwin_conv_to_full_win32_path() in older versions.

case the registry data doesn't follow the format we expect, to facilitate
debugging.

parameters" in recovery.conf, to match the grouping in the documentation.

Fujii Masao

false or null, per Tom.

Add missing completions for:
- ALTER SEQUENCE name OWNER TO
- ALTER TYPE name RENAME TO
- ALTER VIEW name ALTER COLUMN
- ALTER VIEW name OWNER TO
- ALTER VIEW name SET SCHEMA

Fix wrong completions for:
- ALTER FUNCTION/AGGREGATE name (arguments) ...
    "(arguments)" has been ignored.
- ALTER ... SET SCHEMA
    "SCHEMA" has been considered as a variable name.