Imports
- github.com/cockroachdb/errors
- github.com/cockroachdb/cockroach/pkg/sql/opt/constraint
- 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/types
- github.com/cockroachdb/cockroach/pkg/util/log
- github.com/cockroachdb/cockroach/pkg/util/json
- github.com/cockroachdb/cockroach/pkg/sql/opt/memo