[KYLIN-5117] Support percentile function after aggregate sub query

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: v4.0.0
• Fix Version/s: v4.0.1
• Assignee: hujiahua
• Reporter: hujiahua
• Created: 05/Nov/21 07:55
• Updated: 06/Jan/22 06:48
• Resolved: 09/Nov/21 09:07

Description

The following query execution will report an error：

select percentile(t.gmv, 0.5) from ( select buyer_id,sum(price) as gmv from kylin_sales group by buyer_id ) t

java.lang.IllegalArgumentException: Unsupported function name PERCENTILE_APPROX while executing SQL: "select percentile(t.gmv, 0.5) from ( select buyer_id,sum(price) as gmv from kylin_sales group by buyer_id ) t"

So it's better to support `percentile` function after aggregate sub query.