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Posted to issues@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2020/09/02 19:16:00 UTC
[jira] [Commented] (CALCITE-4217) RelCrossType#isStruct should be
true rather than false
[ https://issues.apache.org/jira/browse/CALCITE-4217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17189641#comment-17189641 ]
Julian Hyde commented on CALCITE-4217:
--------------------------------------
No, a cross type is not a struct.
> RelCrossType#isStruct should be true rather than false
> ------------------------------------------------------
>
> Key: CALCITE-4217
> URL: https://issues.apache.org/jira/browse/CALCITE-4217
> Project: Calcite
> Issue Type: Sub-task
> Components: core
> Affects Versions: 1.25.0
> Reporter: Vladimir Sitnikov
> Priority: Major
>
> Currently RelCrossType#isStruct returns false even though the default implementation in {{org.apache.calcite.rel.type.RelDataTypeImpl#isStruct}} is {{return fieldList != null}}
> That results in {{getFieldList}} throwing assertion error (because it asserts {{isStruct}}), however RelCrossType#getFieldNames works OK because it asserts {{fieldList != null}}
> I think it should be OK if we remove {{isStruct() { return false; } }} override and use {{isStruct}} assertion in both {{getFieldList}} and {{getFieldNames}}
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