Adding support for ARRAY_SORT_DESC to Presto

[jainavi17]

Adding an UDF for sorting array elements in the descending order. The elements of array must be orderable. Null elements will be placed at the end of the returned array.

array_sort_desc(array(T)) -> array(T)

Test plan
Added unit tests.
Build successfully using the following terminal command

• mvn -Dtest=TestArraySqlFunctions install

== RELEASE NOTES ==

General Changes
* Add :func:`array_sort_desc` function to sort an array in the descending order

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: jainavi17 / name: Avinash Jain (30aa812751da1ee0ffc593e341351fd996076f98)

[kaikalur]

Adding an UDF for sorting array elements in the descending order. The elements of array must be orderable. Null elements will be placed at the end of the returned array.

array_sort_desc(array(T)) -> array(T)

Test plan Added unit tests. Build successfully using the following terminal command

• mvn -Dtest=TestArraySqlFunctions install

== RELEASE NOTES ==

General Changes
* Adding support for ARRAY_SORT_DESC
* Returns an array sorted in the descending order. The elements should be orderable else function will throw an error. Similar to ARRAY_SORT, null elements are placed at the end of the array.

.. function:: array_sort_desc(array(T)) -> array(T)
   Returns sorted ``array`` in descending order

`SELECT array_sort_desc(ARRAY [100, 1, 10, 50]); -- [100, 50, 10, 1]`
`SELECT array_sort_desc(ARRAY [null, 100, null, 1, 10, 50]); -- [100, 50, 10, 1, null, null]`
`SELECT array_sort_desc(ARRAY [null, 100, null, 1, 10, 50]); -- [100, 50, 10, 1, null, null]`

Formatting release notes

[highker]

The release note is too verbose. We only need one (long) line to explain what it does in English. Also, we need :func: annotation for the function name so it can be linked to the doc you wrote.

[v-jizhang]

@bot kick off tests

[jainavi17]

The release note is too verbose. We only need one (long) line to explain what it does in English. Also, we need :func: annotation for the function name so it can be linked to the doc you wrote.

Done!

[jainavi17]

Can we merge this PR?