kszucs opened a new pull request, #9644: URL: https://github.com/apache/arrow-rs/pull/9644
The CDC chunker's value_offset diverged from actual leaf array positions when null list entries had non-empty child offset ranges (valid per the Arrow columnar format spec). This caused slice_for_chunk to produce incorrect non_null_indices, leading to an out-of-bounds panic in write_mini_batch. Track non-null value counts (nni) separately from leaf slot counts in the chunker, and use them in slice_for_chunk to correctly index into non_null_indices regardless of gaps in the leaf array. # Which issue does this PR close? Closes https://github.com/apache/arrow-rs/issues/9637 # Rationale for this change <!-- Why are you proposing this change? If this is already explained clearly in the issue then this section is not needed. Explaining clearly why changes are proposed helps reviewers understand your changes and offer better suggestions for fixes. --> # What changes are included in this PR? <!-- There is no need to duplicate the description in the issue here but it is sometimes worth providing a summary of the individual changes in this PR. --> # Are these changes tested? <!-- We typically require tests for all PRs in order to: 1. Prevent the code from being accidentally broken by subsequent changes 2. Serve as another way to document the expected behavior of the code If tests are not included in your PR, please explain why (for example, are they covered by existing tests)? --> # Are there any user-facing changes? <!-- If there are user-facing changes then we may require documentation to be updated before approving the PR. If there are any breaking changes to public APIs, please call them out. --> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
