findepi commented on issue #12272:
URL: https://github.com/apache/datafusion/issues/12272#issuecomment-2326193214
The `CAST` syntax is already supported by datafusion:
```
> SELECT CAST('123' AS bigint) / 10 AS n, CAST(00345 AS varchar(10)) AS s;
+----+-----+
| n | s |
+----+-----+
| 12 | 345 |
+----+-----+
```
What i am looking for with this issue, is the ability to check what is the
SQL type of an expression to be used in such `CAST` (`bigint` or `varchar(10)`
in the example above).
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