postgresql/doc
Tom Lane 879808e519 Avoid promising that "ADD COLUMN ... DEFAULT NULL" is free.
The system realizes that DEFAULT NULL is dummy in simple cases, but not if
a cast function (such as a length coercion) needs to be applied.  It's
dubious that suppressing that function call would be appropriate, anyway.
For the moment, let's just adjust the docs to say that you should omit the
DEFAULT clause if you don't want a rewrite to happen.  Per gripe from Amit
Langote.
2014-04-03 12:38:00 -04:00
..
src Avoid promising that "ADD COLUMN ... DEFAULT NULL" is free. 2014-04-03 12:38:00 -04:00
bug.template Stamp HEAD as 9.4devel. 2013-06-14 14:41:28 -04:00
KNOWN_BUGS Remove extra newlines at end and beginning of files, add missing newlines 2010-08-19 05:57:36 +00:00
Makefile Remove maintainer-check target, fold into normal build 2013-10-10 20:11:56 -04:00
MISSING_FEATURES Remove extra newlines at end and beginning of files, add missing newlines 2010-08-19 05:57:36 +00:00
TODO Update URL. 2008-08-21 20:15:31 +00:00