[MADLIB-1016] k-mean & decision Tree don't work because of array_agg in order by clause

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: v1.9
• Fix Version/s: v3.0.0
• Component/s: Module: Array Ops
• Assignee: Unassigned
• Reporter: medart
• Created: 08/Sep/16 08:00
• Updated: 26/Jan/17 19:39

Description

When we try to use k-mean function or decision tree the same error appear.

ERROR: plpy.SPIError: ORDER BY specified, but array_agg is not an ordered aggregate function (plpython.c:4648)

For information we use Madlib 1.9.1 with Pivotal Greenplum, and we use the example data as shown in the official documentatio.

The regression work great nad we didint try all the algorithme yet, to see if the problem apprear in the other methods.

Thank you for your help