-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/71561/
-----------------------------------------------------------
Review request for hive, Jesús Camacho Rodríguez, Zoltan Haindrich, and Vineet
Garg.
Bugs: HIVE-22250
https://issues.apache.org/jira/browse/HIVE-22250
Repository: hive-git
Description
-------
Describe function does not provide description for rank functions
=================================================================
The `DESCRIBE FUNCTION` command gets the description of a function from the
`@Description` annotations `value` field. If an UDF is annotated with the
`@WindowFunctionDescription` hive prints
```
There is no documentation for function <function>
```
Even if the description is present in the `@WindowFunctionDescription`
annotation.
This patch implements a fall back to get the description text from
`@WindowFunctionDescription` if `@Description` annotation does not exists.
Diffs
-----
ql/src/java/org/apache/hadoop/hive/ql/ddl/function/desc/DescFunctionOperation.java
6a94a93ef9
ql/src/test/queries/clientpositive/desc_function.q d055d9ca03
ql/src/test/results/clientpositive/desc_function.q.out 1f804bba60
Diff: https://reviews.apache.org/r/71561/diff/1/
Testing
-------
Added test cases to `desc_function.q`:
```
DESCRIBE FUNCTION dense_rank;
DESCRIBE FUNCTION EXTENDED dense_rank;
```
Thanks,
Krisztian Kasa
