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https://issues.apache.org/jira/browse/CALCITE-2290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stamatis Zampetakis updated CALCITE-2290:
-----------------------------------------
Labels: pull-request-available (was: )
> Type mismatch during flattening
> -------------------------------
>
> Key: CALCITE-2290
> URL: https://issues.apache.org/jira/browse/CALCITE-2290
> Project: Calcite
> Issue Type: Bug
> Components: core
> Reporter: Laurent Goujon
> Priority: Major
> Labels: pull-request-available
>
> The following query causes Calcite not being able to perform SQL to Rel
> conversion:
> {code:sql}
> select (res1 = 'qwe') res2 from (select (case when (false) then null else
> 'qwe' end) res1 from (values(1)))
> {code}
>
> While adding the query to {{SqlToRelConverTest}}, the test generates the
> following output:
> {noformat}
> java.lang.AssertionError:
> type mismatch:
> ref:
> CHAR(3) CHARACTER SET "ISO-8859-1" COLLATE "ISO-8859-1$en_US$primary"
> input:
> CHAR(3) CHARACTER SET "ISO-8859-1" COLLATE "ISO-8859-1$en_US$primary" NOT NULL
> at
> org.apache.calcite.test.SqlToRelConverterTest.testCaseFlatten(SqlToRelConverterTest.java:2786)
> {noformat}
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