[CALCITE-608] Exception is thrown when RelMdDistribution for Project operator is called

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.1.0-incubating
• Assignee: Jesús Camacho Rodríguez
• Reporter: Jesús Camacho Rodríguez
• Created: 04/Mar/15 19:42
• Updated: 27/Feb/24 22:15
• Resolved: 10/Mar/15 01:20

Description

The following Exception is thrown when the distribution metadata provider for Project is called:

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)
...

It looks like the assertion is too strict.