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https://issues.apache.org/jira/browse/CALCITE-4266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruben Q L resolved CALCITE-4266.
--------------------------------
Resolution: Fixed
> JDBC adapter throws UnsupportedOperationException if query contains range
> predicate on columns from sub-query
> -------------------------------------------------------------------------------------------------------------
>
> Key: CALCITE-4266
> URL: https://issues.apache.org/jira/browse/CALCITE-4266
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Priority: Major
>
> JDBC adapter throws {{UnsupportedOperationException}} if query contains range
> predicate on columns from sub-query. The query
> {code}
> SELECT CASE WHEN v.g IN (0, 1) THEN 0 ELSE 1 END
> FROM (SELECT * FROM "foodmart"."customer") AS c,
> (SELECT 0 AS g) AS v
> GROUP BY v.g
> {code}
> contains a range (by virtue of the {{IN (0, 1)}}) and throws
> {noformat}
> java.lang.UnsupportedOperationException
> at
> org.apache.calcite.rel.rel2sql.SqlImplementor$Result$1.implementor(SqlImplementor.java:1597)
> at
> org.apache.calcite.rel.rel2sql.SqlImplementor$Context.lambda$toSql$0(SqlImplementor.java:862)
> at
> java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195)
> {noformat}
> The problem is that, in order to simplify a Sarg (see CALCITE-4173), the
> {{implementor()}} is being called in a context where it was not called
> before. The solution is to implement the
> {{SqlImplementor.Context.implementor()}} method in more sub-classes.
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