Imports
- github.com/cockroachdb/cockroach/pkg/sql/sem/tree
- github.com/cockroachdb/cockroach/pkg/sql/opt/norm
- github.com/cockroachdb/cockroach/pkg/sql/opt
- github.com/cockroachdb/cockroach/pkg/sql/opt/idxconstraint
- github.com/cockroachdb/cockroach/pkg/util
- github.com/cockroachdb/cockroach/pkg/sql/opt/memo