recompose this grid

testing results for: sql
lab05
GNU-Fed-i64
sql/test/wlcr11.806 
wlc01 X O0.626 
wlr20 X X0.937 
wlr30 X X0.332 
wlr40 X X0.323 
wlr50 X X0.325 
wlr70 X X0.324 
wlr100 X X0.325 
70193 (Nov2019)