hpcc-systems/HPCC-Platform — pull request #3398 by jakesmith (2012-09-25 16:26:39+00:00)
Title: HPCC-7891 colprefix inx with 0 rows hitting assert

A column prefix compressed index with 0 rows (in a part), was falsely
asserting that there should be key buffer
This is a regression, introduced by HPCC-7891

Signed-off-by: Jake Smith