[CALCITE-3725] RelMetadataTest fails with NPE due to unsafe RelMetadataQuery.instance call

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.21.0
• Fix Version/s: 1.22.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: Vladimir Sitnikov
• Created: 11/Jan/20 13:04
• Updated: 06/Mar/20 04:35
• Resolved: 13/Jan/20 06:36

Description

org.apache.calcite.test.RelMetadataTest > testColumnUniquenessForMinusWithConstantColumns() FAILED
    java.lang.NullPointerException
        at java.util.Objects.requireNonNull(Objects.java:203)
        at org.apache.calcite.rel.metadata.RelMetadataQuery.<init>(RelMetadataQuery.java:141)
        at org.apache.calcite.rel.metadata.RelMetadataQuery.<init>(RelMetadataQuery.java:106)
        at org.apache.calcite.rel.metadata.RelMetadataQuery.instance(RelMetadataQuery.java:174)
        at org.apache.calcite.test.RelMetadataTest.testColumnUniquenessForMinusWithConstantColumns(RelMetadataTest.java:1057)

Issue Links

• is caused by: CALCITE-3428 Refine RelMdColumnUniqueness for Filter by considering constant columns
• links to: GitHub Pull Request #1751