recompose this grid

testing results for: sql
lab01
GNU-Fed-i64
sql/test/wlcr29.197 
wlr20 X X1.642 
wlr30 X X0.967 
wlr40 X O0.628 
wlr50 X O0.619 
wlr70 X O4.752 
wlr100 X O5.552 
72356 (linear-hashing)