in "postgres_verbose" intervalstyle, and the equally arbitrary decision to
show at least two fractional-seconds digits in most other datetime display
styles.  This results in some minor changes in the expected regression test
outputs.

Also, coalesce a lot of repetitive code in datetime.c into subroutines,
for clarity and ease of maintenance.  In particular this roughly halves
the number of #ifdef HAVE_INT64_TIMESTAMP segments.

Ron Mayer, with some additional kibitzing from Tom Lane

Detect and error out on inability to get proper linkage information required for plperl, usually due to absence of perl ExtUtils::Embed module. Backpatch as far as 8.1.

Greg Sabino Mullane

translated_vars list get updated when pulling up an appendrel member.  It's
not clear that this really matters at present, since relatively little gets
done with the outputs of an appendrel child relation; but it probably will
come back to bite us sometime if we leave them with the wrong values.

we extended the appendrel mechanism to support UNION ALL optimization.  The
reason nobody noticed was that we are not actually using attr_needed data for
appendrel children; hence it seems more reasonable to rip it out than fix it.
Back-patch to 8.2 because an Assert failure is possible in corner cases.
Per examination of an example from Jim Nasby.

In HEAD, also get rid of AppendRelInfo.col_mappings, which is quite inadequate
to represent UNION ALL situations; depend entirely on translated_vars instead.

up a SSL connection, but psql is compiled without support for it.

Not a really realistic use-case, but the patch also cuts down on
the number of places with #ifdef's...

"base/11517/3767_fsm", instead of symbolic names like "1663/11517/3767/1",
per Alvaro's suggestion. I didn't change the messages in the higher-level
index, heap and FSM routines, though, where the fork is implicit.

Adapted regression test files accordingly.

non-null-terminated input.  Per discussion with ITAGAKI Takahiro.

specifically, we can input either the "format with designators" or the
"alternative format", and we can output the former when IntervalStyle is set
to iso_8601.

Ron Mayer

the length of a UTF8 character with pg_mblen (wrong if DB encoding isn't
UTF8), and the latter was blithely assuming that a static buffer would somehow
revert to all zeroes for each use.

different locales.  This is just syntactical sweetener over --lc-collate and
--lc-ctype.  Per discussion.

While at it, properly document --lc-ctype and --lc-collate in SGML docs,
which apparently were forgotten (or purposefully ommited?) when they were
created.

is NULL), so remove some useless tests for the case.

it was using too soon.  In a situation where pg_do_encoding_conversion is
a no-op, this led to garbage data returned.

In HEAD, also modify the code that's ensuring null termination to make it
a tad more obvious what's happening.

VACUUM reset them to false rather than trying to clean 'em up during DROP.

("there might be triggers") rather than an exact count.  This is necessary
catalog infrastructure for the upcoming patch to reduce the strength of
locking needed for trigger addition/removal.  Split out and committed
separately for ease of reviewing/testing.

In passing, also get rid of the unused pg_class columns relukeys, relfkeys,
and relrefs, which haven't been maintained in many years and now have no
chance of ever being maintained (because of wishing to avoid locking).

Simon Riggs

If the latter doesn't exist, automatically recreate it.  (We don't do
this for pg_xlog, though, per discussion.)

Jonah Harris

(It's always worked like this, but we never documented it before.)

from DateStyle, and create a new interval style that produces output matching
the SQL standard (at least for interval values that fall within the standard's
restrictions).  IntervalStyle is also used to resolve the conflict between the
standard and traditional Postgres rules for interpreting negative interval
input.

Ron Mayer

it behaves correctly for a leading minus sign, zero year value, and
nonzero month value.  Per discussion with Ron Mayer.

citext-to-and-from-xml tests, since those caused variation between
installations with or without libxml without really proving much.  Instead
repurpose citext_1.out as the expected results in glibc en_US (and probably
other) locales.

as much of it as lives in its default tablespace) to a new tablespace.

Guillaume Lelarge, with some help from Bernd Helmle and Tom Lane

(but not locked, as that would risk deadlocks).  Also, make it work in a small
ring of buffers to avoid having bulk inserts trash the whole buffer arena.

Robert Haas, after an idea of Simon Riggs'.

if their source or target types match the pattern (using the same definition
of "match" as \dT does).  Per recent discussion.

index column numbers needs to handle the case where you have more than
one scankey on the same index column. toast_fetch_datum_slice() needs it.

change fix for suppress_redundant_updates_trigger() where relation has Oids, to only apply if present Oid is invalid, per second thought from TGL

Hopefully this will forestall future confusion about their roles.

Jonah Harris

postgresql.conf 'ssl' section.

backpatch to 8.3.X.

Jonah Harris

the proc->argnames array has to be initialized to zero immediately on creation,
since the error recovery path will try to free its elements.

tool chain.  With some polishing, this might help us get rid of our ancient
and crufty man page build mechanism.