id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
10924	Should use variance() and stddev() rather than var_samp() and stddev_samp() on Postgresql < 8.2	Richard Davies <richard.davies@…>		"As per http://developer.postgresql.org/pgdocs/postgres/release-8-2.html , the aggregation functions var_pop(), var_samp(), stddev_pop(), and stddev_samp() were first introduced in Postgresql 8.2.

However, var_samp() and stddev_samp() were merely renamings of the pre-existing aggregates variance() and stddev(), so we could extend support to earlier versions of Postgresql by using those older function names where appropriate."		closed	Database layer (models, ORM)	dev		wontfix		richard.davies@…	Unreviewed	0	0	0	0	0	0