Matthias Pohl created FLINK-30203:
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Summary: 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
Reporter: Matthias Pohl
[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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