[jira] [Created] (FLINK-6614) Applying function on window auxiliary function fails

[Shang Yuanchun (Jira)]

Fabian Hueske created FLINK-6614:
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             Summary: Applying function on window auxiliary function fails
                 Key: FLINK-6614
                 URL: https://issues.apache.org/jira/browse/FLINK-6614
             Project: Flink
          Issue Type: Bug
          Components: Table API & SQL
    Affects Versions: 1.3.0, 1.4.0
            Reporter: Fabian Hueske


SQL queries that apply a function or expression on a window auxiliary function ({{TUMBLE_START}}, {{TUMBLE_END}}, {{HOP_START}}, etc). cannot be translated and fail with a {{CodeGenException}}:
 
{code}
Exception in thread "main" org.apache.flink.table.codegen.CodeGenException: Unsupported call: TUMBLE_END
{code}

Example query:

{code}
SELECT
  a,
  toLong(TUMBLE_END(rowtime, INTERVAL '10' MINUTE)) AS t,
  COUNT(b) AS cntB
FROM myTable
GROUP BY a, TUMBLE(rowtime, INTERVAL '10' MINUTE)
{code}



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