4 commits

Author	SHA1	Message	Date
Tom Hughes	c38de8027f	Correct name of ActiveRecord	2010-06-15 17:12:55 +01:00
Tom Hughes	8af14faa49	Make database offline mode work	2010-06-15 10:07:39 +01:00
Tom Hughes	f980e7e4a6	Completely replace rails' version of pk_and_sequence_for ... Falling back to the rails code for pk_and_sequence_for doesn't work because we still wind up retrying the slow version of the query for tables with no primary key. So just replace it instead.	2010-06-14 13:00:49 +01:00
Tom Hughes	a0af70cfb4	Monkey patch rails to make system table query efficient ... Rails tries to query the system tables to find the primary key and it's controlling sequence, but it doesn't specify that it is looking for objects of class "pg_class" so the pg_depend table has to be sequentially scanned instead of being accessed using the index. Tests on the production database show that the time taken for this query drops from 3.5s to 15ms if the index is used.	2010-06-14 12:43:39 +01:00