Table 1: With index.
name current current previous previous
x y x y
team role
red dev Bob 2 12 23 49
red dev Carol 54 42 2 4
red qa Alice 20 4 18 19
blue dev Dave 42 21 43 23
blue dev Eve 7 12 55 6
blue qa Frank 1 5 48 38
Table 2: Without index.
team role name current current previous previous
x y x y
red dev Bob 2 12 23 49
red dev Carol 54 42 2 4
red qa Alice 20 4 18 19
blue dev Dave 42 21 43 23
blue dev Eve 7 12 55 6
blue qa Frank 1 5 48 38