recompose this grid

testing results for: sql
lab05
GNU-Fed-i64
sql/test/wlcr16.318 
wlc01 X O1.363 
wlr20 X X1.699 
wlr30 X X0.615 
wlr40 X X0.598 
wlr50 X X0.598 
wlr70 X X0.595 
wlr100 X X0.594 
70193 (Nov2019)