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https://issues.apache.org/jira/browse/CALCITE-1522?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-1522.
----------------------------------
Resolution: Fixed
Fix Version/s: 1.11.0
Fixed in http://git-wip-us.apache.org/repos/asf/calcite/commit/e4d3ad0b. Thanks
for the PR, [[email protected]]!
> RelBuilder.union() hits assertion when arguments can't have a common row type
> -----------------------------------------------------------------------------
>
> Key: CALCITE-1522
> URL: https://issues.apache.org/jira/browse/CALCITE-1522
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: Jess Balint
> Assignee: Julian Hyde
> Priority: Minor
> Labels: union
> Fix For: 1.11.0
>
>
> Creating a union throws an AssertionError when a common row type cannot be
> computed. e.g. (modified {{RelBuilderTest.testUnion()}}):
> {code}
> builder.scan("DEPT")
> .project(builder.field("DEPTNO"))
> .scan("EMP")
> .project(builder.field("EMPNO"), builder.field("SAL"))
> .union(true)
> {code}
> throws:
> {noformat}
> java.lang.AssertionError: LogicalUnion#4
> at
> org.apache.calcite.rel.AbstractRelNode.getRowType(AbstractRelNode.java:220)
> at
> org.apache.calcite.tools.RelBuilder$Frame.<init>(RelBuilder.java:1623)
> at
> org.apache.calcite.tools.RelBuilder$Frame.<init>(RelBuilder.java:1606)
> at org.apache.calcite.tools.RelBuilder.push(RelBuilder.java:220)
> at org.apache.calcite.tools.RelBuilder.setOp(RelBuilder.java:1032)
> at org.apache.calcite.tools.RelBuilder.union(RelBuilder.java:1052)
> at org.apache.calcite.tools.RelBuilder.union(RelBuilder.java:1042)
> at
> org.apache.calcite.test.RelBuilderTest.testUnion(RelBuilderTest.java:719)
> {noformat}
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