Function mz_mysql_util::schemas::parse_as_text_column

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

Parse the specified column as a TEXT COLUMN. We only support the set of types that are represented as an encoded-string in both the mysql-common binary query response and binlog event representation, OR types that we’ve added explicit casting support for.