This PR supports a Table Value Function called `Query`. He can push a query directly to the catalog source for execution by specifying `catalog` and `query` without parsing by Doris. Doris only receives the results returned by the query.
Currently only JDBC Catalog is supported.
Example:
```
Doris > desc function query('catalog' = 'mysql','query' = 'select count(*) as cnt from test.test');
+-------+--------+------+------+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------+--------+------+------+---------+-------+
| cnt | BIGINT | Yes | true | NULL | NONE |
+-------+--------+------+------+---------+-------+
Doris > select * from query('catalog' = 'mysql','query' = 'select count(*) as cnt from test.test');
+----------+
| cnt |
+----------+
| 30000000 |
+----------+
```
5a3107442a