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https://issues.apache.org/jira/browse/FLINK-30203?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Pohl updated FLINK-30203:
----------------------------------
Affects Version/s: 1.15.3
> BatchPandasConversionTests.test_empty_to_pandas failed
> ------------------------------------------------------
>
> Key: FLINK-30203
> URL: https://issues.apache.org/jira/browse/FLINK-30203
> Project: Flink
> Issue Type: Bug
> Components: API / Python
> Affects Versions: 1.16.0, 1.15.3
> Reporter: Matthias Pohl
> Priority: Major
> Labels: test-stability
>
> [This
> build|https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=43484&view=logs&j=3e4dd1a2-fe2f-5e5d-a581-48087e718d53&t=b4612f28-e3b5-5853-8a8b-610ae894217a&l=29175]
> failed (not exclusively) because of
> {{{}BatchPandasConversionTests.test_empty_to_pandas{}}}. Looks like it's
> caused by a {{{}NullPointerException{}}}:
> {code:java}
> Nov 25 02:08:35 E py4j.protocol.Py4JJavaError: An error
> occurred while calling
> z:org.apache.flink.table.runtime.arrow.ArrowUtils.collectAsPandasDataFrame.
> Nov 25 02:08:35 E : java.lang.NullPointerException
> Nov 25 02:08:35 E at
> java.util.Objects.requireNonNull(Objects.java:203)
> Nov 25 02:08:35 E at
> org.apache.calcite.rel.metadata.RelMetadataQuery.<init>(RelMetadataQuery.java:144)
> Nov 25 02:08:35 E at
> org.apache.calcite.rel.metadata.RelMetadataQuery.<init>(RelMetadataQuery.java:108)
> Nov 25 02:08:35 E at
> org.apache.flink.table.planner.plan.metadata.FlinkRelMetadataQuery.<init>(FlinkRelMetadataQuery.java:78)
> Nov 25 02:08:35 E at
> org.apache.flink.table.planner.plan.metadata.FlinkRelMetadataQuery.instance(FlinkRelMetadataQuery.java:59)
> Nov 25 02:08:35 E at
> org.apache.flink.table.planner.calcite.FlinkRelOptClusterFactory$$anon$1.get(FlinkRelOptClusterFactory.scala:39)
> Nov 25 02:08:35 E at
> org.apache.flink.table.planner.calcite.FlinkRelOptClusterFactory$$anon$1.get(FlinkRelOptClusterFactory.scala:38)
> Nov 25 02:08:35 E at
> org.apache.calcite.plan.RelOptCluster.getMetadataQuery(RelOptCluster.java:178)
> Nov 25 02:08:35 E at
> org.apache.calcite.rel.logical.LogicalFilter.create(LogicalFilter.java:127)
> [...] {code}
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