Useless filter dimension will impact cuboid selection.

Query1: select count from test_kylin_fact where (cal_dt > DATE'2012-01-01') and (seller_id is null or 1 = 1)
Query2: select count from test_kylin_fact where (cal_dt > DATE'2012-01-01')

Q1 and Q2 return identical result but hit different cuboid: 43051 and 1310735, and result in different query performance.