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
10906	Aggregation support absent on postgres < 8.2	Richard Davies <richard.davies@…>		"Running the test suite on a clean check out of r10628, with PostgreSQL 8.1 and psycopg2, I get numerous errors from the regressiontests/aggregation_regress/, including:

{{{
    ProgrammingError: function stddev_pop(integer) does not exist
    ProgrammingError: function stddev_samp(integer) does not exist
    ProgrammingError: function var_pop(integer) does not exist
    ProgrammingError: function var_samp(integer) does not exist
}}}

I believe that these aggregates were first implemented in PostgreSQL 8.2, so either the aggregation code itself or at least the test cases should be conditional on that version.

See [10142] for an existing error message on PostgreSQL 8.2 to 8.2.4, which could perhaps be extended downwards?"		closed	Database layer (models, ORM)	dev		fixed		richard.davies@…	Accepted	1	0	0	0	0	0