Tim Dudgeon wrote:
1. Should I apply the patch to the 10.1.3.1 sources (e.g. the db-derby-10.1.3.1-src.zip download) or something else?
The patch is intended to be applied to the current trunk, which you can fetch from svn via svn checkout https://svn.apache.org/repos/asf/db/derby/code/trunk/
2. Syntax: presumably ALTER TABLE a_table DROP COLUMN a_column;
Yes, pretty much just like that, with two additional notes: - the keyword "COLUMN" is optional, and - there is an optional [ CASCADE | RESTRICT ] at the end; if you don't say CASCADE or RESTRICT the default is CASCADE. If you have more comments about the patch or the implementation we should probably move this discussion to the developer's list (derby-dev@db.apache.org). thanks, bryan