PostgreSQL You have an error in your SQL syntax: SELECT interval '1 -2:03' minute to second

## Bug Report

### Which version of ShardingSphere did you use?

master - 6b095c835f5334f01bb6643565ddb3276e9f9a56

### Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?

### Expected behavior

```
postgres=# SELECT interval '1 -2:03' minute to second;
interval
-----------------
1 day -00:02:03
(1 row)
```

### Actual behavior

```
postgres=> SELECT interval '1 -2:03' minute to second;
ERROR: You have an error in your SQL syntax: SELECT interval '1 -2:03' minute to second;, null
```

PostgreSQL grammar: https://github.com/postgres/postgres/blob/58597edea102258b21d5f4b4f0d7796c0ebf100a/src/backend/parser/gram.y#L16452-L16458

Start by reproducing `SELECT interval '1 -2:03' minute to second;` and compare it with the PostgreSQL grammar linked in the issue. Trace how ShardingSphere parses this interval expression; done means the query is accepted and returns the expected `1 day -00:02:03` result.

Written by the indexing model from the issue text.