[python] Introduce 'nested_partial_update' aggregator function#8578
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PyRSA wants to merge 4 commits into
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[python] Introduce 'nested_partial_update' aggregator function#8578PyRSA wants to merge 4 commits into
PyRSA wants to merge 4 commits into
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Purpose
Introduce
nested_partial_updateaggregator functionThis change adds support for the
nested_partial_updateaggregation function in the Python reader, aligning its behavior with the Java implementation. It supports nested-key based partial updates, where only non-null fields overwrite existing values, while configurable nested-key null handling ensures consistent behavior with the Java implementation.Dependency
This PR depends on #8577 and reuses several shared utility methods introduced there. Please review and merge #8577 first.
Tests
python -m pytest pypaimon/tests/test_field_aggregators.py::FieldNestedPartialUpdateAggTest -qgit diff --check