recompose this grid

testing results for: sql
lab05
GNU-Fed-i64
sql/test/wlcr13.078 
wlc01 X O0.821 
wlr20 X X1.125 
wlr30 X X0.413 
wlr40 X X0.393 
wlr50 X X0.398 
wlr70 X X0.394 
wlr100 X X0.395 
70357 (default)