backend startup.

the first call of localtime() in a process will read /usr/lib/tztab or
local equivalent.  Better to do this once in the postmaster and inherit
the data by fork() than to have to do it during every backend start.

send() and probable process context swap during backend startup.

> 	o Generate failure on short COPY lines rather than pad NULLs

pghackers discussion.

to use separate LIMIT/OFFSET clauses.

'ifdef' in Makefile.

Properly handles default values.

                elog(LOG, "XLogWrite: new log file created - "
                     "consider increasing 'wal_files' in postgresql.conf.");

Per Yoshinori Ariie's report.

> * Have pg_dump use ADD PRIMARY KEY after COPY, for performance (Neil Conway)

1) Handle parameter array.
2) Allow re-use of the connection handle after SQLDisconnect.
3) Reject NULL if no indicator specified.
4) Improve the handling of '_' in table name.
5) Unify internal begin/commit/abort operations.
6) Change SQLTables() to return null not "" for the
   table_owner.
7) Fix a bug about parameter handling reported by Benoit Menendez.
8) Add cast in handling ODBC date/time escape sequences.
9) Fix a bug about cache_size handing in declare/fetch mode.

[ODBC3.0 related]
10) Improve the handling of descriptor handles(ODBC3.0).
11) Improve the type handling of some types for ODBC3.0.

[Thanks to Marcelo Aceto for his useful patches]
12) Allow nested ODBC escape.
13) Allow changing autocommit on/off inside the transaction
    block.
14) Improve the handling of ODBC scalar functions.

> * Have pg_dump use ADD PRIMARY KEY after COPY, for performance

> * ODBC
> 	o ODBC 3.0 support
> 	o Unicode(UCS-2) support
> 	o Updatable cursors support

primary keys after the fact!

Also, we need to add regression tests for alter table / add primary key
and alter table / drop constraint.  These shouldn't be added until 7.3
tho
methinks...

Chris

e.g. table contraint definition -> table_constraint_definition.

originally created with, so that the set of visible tuples does not
change as a result of other activity.  This essentially makes PG cursors
INSENSITIVE per the SQL92 definition.  See bug report of 13-Feb-02.

was mentioned on the man page for the underlying CREATE USER command,
but it should be explained here too.

This restores the Linux behavior to what it was in PG 7.0 and 7.1, and
causes other platforms to agree.  (Other well-tested platforms like HPUX
were doing it this way already.)  Per pghackers discussion over the past
month or so.

(backslash-r, backslash-n) for protection against newline-conversion
munging.  In future we will also tweak COPY FROM, but this part of the
change should be backwards-compatible.  Per pghackers discussion.
Also, update COPY reference page to describe the backslash conversions
more completely and accurately.