Zoltán Borók-Nagy created IMPALA-12568:
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Summary: Add conflictDetectionFilter for Iceberg DML statements
Key: IMPALA-12568
URL: https://issues.apache.org/jira/browse/IMPALA-12568
Project: IMPALA
Issue Type: Bug
Reporter: Zoltán Borók-Nagy
Currently Impala is too rigorous when it checks for conflicting data or delete
files.
Currently any concurrently added data/delete file conflict with the current DML
operation, even if they touch different partitions.
Iceberg has
[conflictDetectionFilter|https://iceberg.apache.org/javadoc/1.0.0/org/apache/iceberg/RowDelta.html#conflictDetectionFilter-org.apache.iceberg.expressions.Expression-]([Expression|https://iceberg.apache.org/javadoc/1.0.0/org/apache/iceberg/expressions/Expression.html]
conflictDetectionFilter) API to relax this. I.e. we could only check for
conflicting data/delete files that are in partitions that the current DML
operation touches.
This way we could e.g. compact a partition while other partitions are being
written.
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