---row data
0 (row0)
   ---sub query data
   row1   row2  aggr value(col0+col1)
    0     0        9.0
    0     0        9.0
    0     1        9.0
    0     1        9.0
    0     2        9.0
    0     2        9.0
    1     0        18.0
    1     0        18.0
    1     1        18.0
    1     1        18.0
    1     2        18.0
    1     2        18.0
    2     0        27.0
    2     0        27.0
    2     1        27.0
    2     1        27.0
    2     2        27.0
    2     2        27.0
0 (row0)
   ---sub query data
   row1   row2  aggr value(col0+col1)
    0     0        9.0
    0     0        9.0
    0     1        9.0
    0     1        9.0
    0     2        9.0
    0     2        9.0
    1     0        18.0
    1     0        18.0
    1     1        18.0
    1     1        18.0
    1     2        18.0
    1     2        18.0
    2     0        27.0
    2     0        27.0
    2     1        27.0
    2     1        27.0
    2     2        27.0
    2     2        27.0
1 (row0)
   ---sub query data
   row1   row2  aggr value(col0+col1)
    0     0        9.0
    0     0        9.0
    0     1        9.0
    0     1        9.0
    0     2        9.0
    0     2        9.0
    1     0        18.0
    1     0        18.0
    1     1        18.0
    1     1        18.0
    1     2        18.0
    1     2        18.0
    2     0        27.0
    2     0        27.0
    2     1        27.0
    2     1        27.0
    2     2        27.0
    2     2        27.0
1 (row0)
   ---sub query data
   row1   row2  aggr value(col0+col1)
    0     0        9.0
    0     0        9.0
    0     1        9.0
    0     1        9.0
    0     2        9.0
    0     2        9.0
    1     0        18.0
    1     0        18.0
    1     1        18.0
    1     1        18.0
    1     2        18.0
    1     2        18.0
    2     0        27.0
    2     0        27.0
    2     1        27.0
    2     1        27.0
    2     2        27.0
    2     2        27.0
2 (row0)
   ---sub query data
   row1   row2  aggr value(col0+col1)
    0     0        9.0
    0     0        9.0
    0     1        9.0
    0     1        9.0
    0     2        9.0
    0     2        9.0
    1     0        18.0
    1     0        18.0
    1     1        18.0
    1     1        18.0
    1     2        18.0
    1     2        18.0
    2     0        27.0
    2     0        27.0
    2     1        27.0
    2     1        27.0
    2     2        27.0
    2     2        27.0
2 (row0)
   ---sub query data
   row1   row2  aggr value(col0+col1)
    0     0        9.0
    0     0        9.0
    0     1        9.0
    0     1        9.0
    0     2        9.0
    0     2        9.0
    1     0        18.0
    1     0        18.0
    1     1        18.0
    1     1        18.0
    1     2        18.0
    1     2        18.0
    2     0        27.0
    2     0        27.0
    2     1        27.0
    2     1        27.0
    2     2        27.0
    2     2        27.0
---sum data (col0)
0.0
0.0
27.0
27.0
54.0
54.0
---starting group level data
0
2
1
2
1
2
---ending group level data
2
1
2
1
2
0
