18
Why we care: 1
•
The
combined complexity
of query evaluation:
•
Given A,
f
, decide whether A
²
f
–
•
What is the complexity of:
{(A,
f
) | A
2
STRUCT[
s
],
f
2
FO}
{(A,
f
) | A
2
STRUCT[
s
],
f
2
FO
k
}