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https://issues.apache.org/jira/browse/FLINK-20323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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godfrey he closed FLINK-20323.
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Resolution: Fixed
Fixed in 1.14.0: 109135a4ab7c0db79aef7541dfe1ecb96daed894
> CorrelateSortToRankRule cannot deal with multiple groupings
> -----------------------------------------------------------
>
> Key: FLINK-20323
> URL: https://issues.apache.org/jira/browse/FLINK-20323
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / Planner
> Reporter: Timo Walther
> Assignee: Shuo Cheng
> Priority: Minor
> Labels: auto-deprioritized-major, pull-request-available
> Fix For: 1.14.0
>
>
> Fix the following test case in {{CorrelateSortToRankRuleTest}}:
> {code}
> @Test // TODO: this is a valid case to support
> def testMultipleGroupingsNotSupported(): Unit = {
> val query =
> s"""
> |SELECT f0, f2
> |FROM
> | (SELECT DISTINCT f0, f1 FROM t1) t2,
> | LATERAL (
> | SELECT f2
> | FROM t1
> | WHERE f0 = t2.f0 AND f1 = t2.f1
> | ORDER BY f2
> | DESC LIMIT 3
> | )
> """.stripMargin
> util.verifyPlan(query)
> }
> {code}
> Currently, we only support one equal condition not {{f0 = t2.f0 AND f1 =
> t2.f1}}.
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