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https://issues.apache.org/jira/browse/ASTERIXDB-2550?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dmitry Lychagin resolved ASTERIXDB-2550.
----------------------------------------
Resolution: Fixed
Fixed by [https://asterix-gerrit.ics.uci.edu/#/c/3349/]
> ClassCastException at compile time
> ----------------------------------
>
> Key: ASTERIXDB-2550
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-2550
> Project: Apache AsterixDB
> Issue Type: Bug
> Components: COMP - Compiler
> Affects Versions: 0.9.4
> Reporter: Dmitry Lychagin
> Assignee: Dmitry Lychagin
> Priority: Minor
> Fix For: 0.9.4.2
>
>
> DDL:
> {noformat}
> create type test.TestType as { id : integer };
> create dataset t1(TestType) primary key id;
> {noformat}
> Query:
> {noformat}
> SELECT * FROM (
> SELECT a FROM t1
> )[0] i
> {noformat}
> Exception:
> {noformat}
> java.lang.ClassCastException: org.apache.asterix.om.types.ARecordType cannot
> be cast to org.apache.asterix.om.types.AbstractCollectionType
> at
> org.apache.asterix.om.typecomputer.impl.CollectionMemberResultType.getResultType(CollectionMemberResultType.java:69)
> ~[classes/:?]
> at
> org.apache.asterix.om.typecomputer.impl.TypeComputeUtils.resolveResultType(TypeComputeUtils.java:124)
> ~[classes/:?]
> at
> org.apache.asterix.om.typecomputer.base.AbstractResultTypeComputer.computeType(AbstractResultTypeComputer.java:44)
> ~[classes/:?]
> at
> org.apache.asterix.dataflow.data.common.ExpressionTypeComputer.getTypeForFunction(ExpressionTypeComputer.java:84)
> ~[classes/:?]
> at
> org.apache.asterix.dataflow.data.common.ExpressionTypeComputer.getType(ExpressionTypeComputer.java:55)
> ~[classes/:?]
> at
> org.apache.hyracks.algebricks.core.algebra.typing.AbstractTypeEnvironment.getType(AbstractTypeEnvironment.java:45)
> ~[classes/:?]
> at
> org.apache.hyracks.algebricks.core.algebra.operators.logical.UnnestOperator.computeOutputTypeEnvironment(UnnestOperator.java:51)
> ~[classes/:?]
> {noformat}
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