recompose this grid

testing results for: sql
power8
GNU-Fed-p64
sql/test/BugTracker-201942.471 
disallow_duplicate_column_aliases.Bug-6723 X X0.625 
prepare-types.Bug-6724 X X0.590 
sequence-first-next-value.Bug-6743 X O0.586 
alter_table_drop_column.Bug-6749 X O4.140 
remote-table-non-existent-column.Bug-6750 M M0.467 
cte-union.Bug-6755 M A10.614 
70121 (candidate-exceptions)