Tanner Clary created CALCITE-5955:
-------------------------------------

             Summary: Non-aggregate window functions incorrectly contain window 
frame clause for BigQuery
                 Key: CALCITE-5955
                 URL: https://issues.apache.org/jira/browse/CALCITE-5955
             Project: Calcite
          Issue Type: Bug
            Reporter: Tanner Clary
            Assignee: Tanner Clary


Currently if you have a query like:

`SELECT PERCENTILE_CONT(x, .5) OVER() FROM x;` the `OVER()` clause gets 
unparsed with a `window frame clause` which BigQuery defines 
[here|https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls#def_window_frame].
 

>From the docs: "Only aggregate analytic functions can use a window frame 
>clause."

This causes BigQuery to fail with the following error: `Window framing clause 
is not allowed for analytic function percentile_cont `



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