> * Automatically place fixed-width, NOT NULL columns first in a table

client-side AUTOCOMMIT mode now: '\set AUTOCOMMIT off' supports
SQL-spec commit behavior.  Get rid of LO_TRANSACTION hack --- the
LO operations just work now, using libpq's ability to track the
transaction status.  Add a VERBOSE variable to control verboseness
of error message display, and add a %T prompt-string code to show
current transaction-block status.  Superuser state display in the
prompt string correctly follows SET SESSION AUTHORIZATION commands.
Control-C works to get out of COPY IN state.

state by itself, so do so.

Greg Sabino Mullane

< * Improve performance for queries with many columns

> * Improve performance for queries with many columns

comparison functions), replacing the highly bogus bitwise array_eq.  Create
a btree index opclass for ANYARRAY --- it is now possible to create indexes
on array columns.
Arrange to cache the results of catalog lookups across multiple array
operations, instead of repeating the lookups on every call.
Add string_to_array and array_to_string functions.
Remove singleton_array, array_accum, array_assign, and array_subscript
functions, since these were for proof-of-concept and not intended to become
supported functions.
Minor adjustments to behavior in some corner cases with empty or
zero-dimensional arrays.

Joe Conway (with some editorializing by Tom Lane).

> * Create improved PostgreSQL introductory documentation for the PHP
>   manuals (Rory)

> * Allow the identifier length to be increased via a configure option

> * Promote debug_query_string into a server-side function current_query()

not ready yet.

Joe Conway

HH:MM:SS.SSS... when there is a nonzero part-of-a-day field in an
interval value.  The seconds part used to be suppressed if zero,
but there's no equivalent behavior for timestamp, and since we're
modeling this format on timestamp it's probably wrong.  Per complaint
and patch from Larry Rosenman.

This is no longer necessary or appropriate since we don't use zero typeid
as a wildcard anymore, and it fixes a nasty performance problem with
functions with many parameters.  Per recent example from Reuven Lerner.