recompose this grid

testing results for: sql
lab05
GNU-Fed-i64
sql/test/wlcr12.045 
wlc01 X O0.667 
wlr20 X X0.953 
wlr30 X X0.354 
wlr40 X X0.337 
wlr50 X X0.336 
wlr70 X X0.339 
wlr100 X X0.335 
70193 (Nov2019)