fn parse_data_type(
info: &InfoSchema,
schema_name: &str,
table_name: &str,
) -> Result<(ScalarType, Option<MySqlColumnMeta>), UnsupportedDataType>
fn parse_data_type(
info: &InfoSchema,
schema_name: &str,
table_name: &str,
) -> Result<(ScalarType, Option<MySqlColumnMeta>), UnsupportedDataType>