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https://issues.apache.org/jira/browse/CALCITE-1829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16035698#comment-16035698
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MinJi Kim commented on CALCITE-1829:
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Okay, let me go find an example and update the description to be more
meaningful. Thanks for the quick response, [~julianhyde]!
> Add TIME/TIMESTAMP/DATE datatype handling to RexImplicationChecker
> ------------------------------------------------------------------
>
> Key: CALCITE-1829
> URL: https://issues.apache.org/jira/browse/CALCITE-1829
> Project: Calcite
> Issue Type: Bug
> Reporter: MinJi Kim
> Assignee: Julian Hyde
>
> In RexImplicationChecker, we support a lot of operators and types, but it
> looks like time/timestamp/date datatypes are not supported. In
> RexImplicationCheckerTest, there are tests for each of the aforementioned
> datatypes, but are disabled.
> {code}
> RexImplicationCheckerTest.testSimpleDate
> RexImplicationCheckerTest.testSimpleTime
> RexImplicationCheckerTest.testSimpleTimestamp
> {code}
> Running these ignored tests, I get the following error messages.
> {code}
> 2017-06-02 17:13:10,028 [main] WARN - Exception thrown while checking if =>
> >=($8, 2017-06-03): java.sql.Date cannot be cast to java.lang.Integer
> 2017-06-02 17:13:10,075 [main] WARN - Exception thrown while checking if =>
> <=($9, 00:13:10): java.util.GregorianCalendar cannot be cast to java.lang.Long
> 2017-06-02 17:13:10,100 [main] WARN - Exception thrown while checking if =>
> <=($9, 2017-06-03 00:13:10): java.util.GregorianCalendar cannot be cast to
> java.lang.Long
> {code}
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