Imports
- github.com/cockroachdb/cockroach/pkg/sql/optbase
- github.com/cockroachdb/cockroach/pkg/sql/sem/tree
- github.com/cockroachdb/cockroach/pkg/sql/sem/types
- github.com/cockroachdb/cockroach/pkg/util/treeprinter
- github.com/cockroachdb/cockroach/pkg/sql/opt/opt
- golang.org/x/tools/container/intsets