Since the current version is 1.1, the 1.0 file isn't really needed.  We do
need the 1.0--1.1 upgrade file, so people on 1.0 can upgrade.

Per recent discussion on pgsql-hackers.

Also expose the new counters through pg_stat_statements.

Patch by me.  Review by Fujii Masao and Greg Smith.

  -l, --logfile=FILENAME        log internal activity to file\n\

The array intersection code would give wrong results if the first entry of
the correct output array would be "1".  (I think only this value could be
at risk, since the previous word would always be a lower-bound entry with
that fixed value.)

Problem spotted by Julien Rouhaud, initial patch by Guillaume Lelarge,
cosmetic improvements by me.

Idea from Peter.

This is some preliminary refactoring related to a pending patch
to allow sepgsql-enable sessions to make dynamic label transitions.
But this commit doesn't involve any functional change: it just puts
some bits of code in more logical places.

KaiGai Kohei

comments about the alarm method used on Win32.

thread.

The hstore and json datatypes both have record-conversion functions that
pay attention to column names in the composite values they're handed.
We used to not worry about inserting correct field names into tuple
descriptors generated at runtime, but given these examples it seems
useful to do so.  Observe the nicer-looking results in the regression
tests whose results changed.

catversion bump because there is a subtle change in requirements for stored
rule parsetrees: RowExprs from ROW() constructs now have to include field
names.

Andrew Dunstan and Tom Lane

test, rather than a number of test cycles.  Changes -o/cycles option to
-s/seconds.

Problem reported by Peter Eisentraut.

Backpatched to release 9.0.

Sometimes it may be useful to get actual row counts out of EXPLAIN
(ANALYZE) without paying the cost of timing every node entry/exit.
With this patch, you can say EXPLAIN (ANALYZE, TIMING OFF) to get that.

Tomas Vondra, reviewed by Eric Theise, with minor doc changes by me.

In dry-run mode, just the name of the file to be removed is printed to
stdout; this is so the user can easily plug it into another program
through a pipe.  If debug mode is also specified, a more verbose message
is printed to stderr.

Author: Gabriele Bartolini
Reviewer: Josh Kupershmidt

Due to oversights, the encrypt_iv() and decrypt_iv() functions failed to
report certain types of invalid-input errors, and would instead return
random garbage values.

Marko Kreen, per report from Stefan Kaltenbrunner

have pg_upgrade allocate a maximum fixed size buffer for testing the
library file name, rather than base the allocation on the library name.

Backpatch to 9.1.

"plpython2" when upgrading from pre-PG 9.1.  Patch to head and 9.1.

Per report from Peter.

check cluster version numbers, and fix missing table alias.

Kevin Grittner, reviewed (in earlier versions) by Álvaro Herrera

The function in question does not in fact ensure that the passed
argument is not changed, and the callers don't care much either.

The original coding examined the next character before verifying that
there *is* a next character.  In the worst case with the input buffer
right up against the end of memory, this would result in a segfault.

Problem spotted by Paul Guyot; this commit extends his patch to fix an
additional case.  In addition, make the code a tad more readable by not
overloading the usage of *tlen.

Always compare the return value to 0, don't use cute tricks like
if (!strcmp(...)).

All supported platforms support the C89 standard function atexit()
(SunOS 4 probably being the last one not to), and supporting both
makes the code clumsy.

This is the standard behavior but was forgotten in some places.

KaiGai Kohei, reviewed by Dimitri Fontaine and me.

Marti Raudsepp, with additional paranoia by me.

Instead, add a function pg_tablespace_location(oid) used to return
the same information, and do this by reading the symbolic link.

Doing it this way makes it possible to relocate a tablespace when the
database is down by simply changing the symbolic link.

preserve pg_class oids since PG 9.0.

Disabled for now because some build farm members with low resources
are not prepared to handle it.

It runs the regression tests, runs pg_upgrade on the populated
database, and compares the before and after dumps.  While not actually
a cross-version upgrade, this does detect omissions and bugs in the
involved tools from time to time.  It's also possible to do a
cross-version upgrade by manually supplying parameters.

Sidar Lopez, per bug #6310, with some additional improvements by me.
Back-patch to 9.0, where the issue was introduced.

allow upgrades of the same catalog version.  (Doesn't work for
tablespaces, as indicated by C comment.)

If the existing citext type has not merely been created, but used in any
tables, then the upgrade script wasn't doing enough.  We have to update
attcollation for each citext table column, and indcollation for each citext
index column, as well.  Per report from Rudolf van der Leeden.

--- we were not using the scandir pattern filtering anyway.  This also
removes the scandir requirement in configure.