Tom Lane 077db40fa1 ALTER TABLE rewrite. New cool stuff: ... * ALTER ... ADD COLUMN with defaults and NOT NULL constraints works per SQL spec. A default is implemented by rewriting the table with the new value stored in each row. * ALTER COLUMN TYPE. You can change a column's datatype to anything you want, so long as you can specify how to convert the old value. Rewrites the table. (Possible future improvement: optimize no-op conversions such as varchar(N) to varchar(N+1).) * Multiple ALTER actions in a single ALTER TABLE command. You can perform any number of column additions, type changes, and constraint additions with only one pass over the table contents. Basic documentation provided in ALTER TABLE ref page, but some more docs work is needed. Original patch from Rod Taylor, additional work from Tom Lane.		2004-05-05 04:48:48 +00:00
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access	Tweak indexscan and seqscan code to arrange that steps from one page to	2004-04-21 18:24:26 +00:00
bootstrap	ALTER TABLE rewrite. New cool stuff:	2004-05-05 04:48:48 +00:00
catalog	ALTER TABLE rewrite. New cool stuff:	2004-05-05 04:48:48 +00:00
commands	ALTER TABLE rewrite. New cool stuff:	2004-05-05 04:48:48 +00:00
executor	Tweak indexscan and seqscan code to arrange that steps from one page to	2004-04-21 18:24:26 +00:00
lib	Remove the last traces of Joe Hellerstein's "xfunc" optimization. Patch	2004-04-25 18:23:57 +00:00
libpq	Ensure getaddrinfo_all returns null result on failure.	2004-04-24 20:10:34 +00:00
main	* Most changes are to fix warnings issued when compiling win32	2004-04-19 17:42:59 +00:00
nodes	ALTER TABLE rewrite. New cool stuff:	2004-05-05 04:48:48 +00:00
optimizer	Remove the last traces of Joe Hellerstein's "xfunc" optimization. Patch	2004-04-25 18:23:57 +00:00
parser	ALTER TABLE rewrite. New cool stuff:	2004-05-05 04:48:48 +00:00
po	Translation updates	2004-04-09 06:49:35 +00:00
port	Per discussion earlier today, here is a fix that lets ereport() on win32	2004-04-22 03:51:24 +00:00
postmaster	* Most changes are to fix warnings issued when compiling win32	2004-04-19 17:42:59 +00:00
regex	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00
rewrite	Replace TupleTableSlot convention for whole-row variables and function	2004-04-01 21:28:47 +00:00
storage	Tiny assorted fixes: correct a typo in a comment in vacuumlazy.c, remove	2004-04-25 23:50:58 +00:00
tcop	ALTER TABLE rewrite. New cool stuff:	2004-05-05 04:48:48 +00:00
utils	ALTER TABLE rewrite. New cool stuff:	2004-05-05 04:48:48 +00:00
Makefile	More cleanups for USE_PGTZ.	2004-04-30 16:08:01 +00:00
nls.mk	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00