fx19880617 opened a new pull request #5940:
URL: https://github.com/apache/incubator-pinot/pull/5940
## Description
This PR fixes the query like:
```
select Hour(event_time), group_city, sum(rsvp_count) from meetupRsvp group
by Hour(event_time), group_city order by sum(rsvp_count) desc limit 10
```
which raises exceptions:
```
QueryExecutionError:
org.apache.pinot.core.query.exception.BadQueryRequestException: Unsupported
function: other with 1 parameters
at
org.apache.pinot.core.operator.transform.function.TransformFunctionFactory.get(TransformFunctionFactory.java:181)
...
```
The reason is that `HOUR` is a pinot UDF which CalciteSQL parser doesn't
recognize and marked the SQL_KIND as `OTHER` with the real function name inside
the function info.
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