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https://issues.apache.org/jira/browse/CALCITE-608?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde resolved CALCITE-608.
---------------------------------
Resolution: Fixed
Fix Version/s: 1.1.0-incubating
Fixed in
http://git-wip-us.apache.org/repos/asf/incubator-calcite/commit/03e94498
> Exception is thrown when RelMdDistribution for Project operator is called
> -------------------------------------------------------------------------
>
> Key: CALCITE-608
> URL: https://issues.apache.org/jira/browse/CALCITE-608
> Project: Calcite
> Issue Type: Bug
> Reporter: Jesus Camacho Rodriguez
> Assignee: Jesus Camacho Rodriguez
> Fix For: 1.1.0-incubating
>
>
> The following Exception is thrown when the distribution metadata provider for
> Project is called:
> {noformat}
> Caused by: java.lang.AssertionError
> at org.apache.calcite.util.mapping.Mappings.create(Mappings.java:62)
> at org.apache.calcite.rel.core.Project.getMapping(Project.java:283)
> at
> org.apache.calcite.rel.metadata.RelMdDistribution.project(RelMdDistribution.java:140)
> at
> org.apache.calcite.rel.metadata.RelMdDistribution.distribution(RelMdDistribution.java:87)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606)
> at
> org.apache.calcite.rel.metadata.ReflectiveRelMetadataProvider$2$1.invoke(ReflectiveRelMetadataProvider.java:194)
> at com.sun.proxy.$Proxy31.distribution(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> ...
> {noformat}
> It looks like the assertion is too strict.
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