Imports github.com/juju/errors github.com/pingcap/tidb/kv github.com/pingcap/tidb/mysql github.com/pingcap/tidb/sessionctx/stmtctx github.com/pingcap/tidb/terror github.com/pingcap/tidb/types github.com/pingcap/tidb/util/codec Standard library imports bytes encoding/binary math time