Hojjat Jafarpour

If multiple lines are used for a query, `show query` does not correctly indent the query content. Here is an example: ``` ksql> CREATE STREAM pageviews_enriched AS >SELECT users_original.userid AS...

Moved the kstream window application to the physical plan phase.

4

### Description This is a minor refactor to move the code for the application of windows in the physical plan from parser to engine. This code is physical plan code...

feat: Added udf/udaf support to th etesting tool.

4

### Description This PR adds UDF/UDAF support to the testing tool. I also removed some unused methods! It also fixes #3094 ### Testing done Test with UDF added. ### Reviewer...