recompose this grid

testing results for: sql
lab05
GNU-Fed-i64
sql/test/wlcr11.840 
wlc01 X O0.637 
wlr20 X X0.940 
wlr30 X X0.329 
wlr40 X X0.323 
wlr50 X X0.323 
wlr70 X X0.327 
wlr100 X X0.326 
70375 (Nov2019)