recompose this grid

testing results for: sql
lab01
GNU-Fed-i64
sql/test/wlcr30.832 
wlr20 X X1.999 
wlr30 X X1.123 
wlr40 X O0.742 
wlr50 X O0.717 
wlr70 X O4.861 
wlr100 X O5.652 
72356 (linear-hashing)