vincev opened a new pull request, #5282: URL: https://github.com/apache/arrow-datafusion/pull/5282
# Which issue does this PR close? <!-- We generally require a GitHub issue to be filed for all bug fixes and enhancements and this helps us generate change logs for our releases. You can link an issue to this PR using the GitHub syntax. For example `Closes #123` indicates that this PR will close issue #123. --> Closes #5281. # Rationale for this change When running an aggregate count on an unnested column the aggregate_statistics optimizer removes UnnestExec from the ExecutionPlan. # What changes are included in this PR? `UnnestExec::statistics` returns default statistics instead of returning child statistics. <!-- 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? Tests for the fix is [here](https://github.com/vincev/arrow-datafusion/blob/047803a879e7af7e894280eb9c51edb5f931c249/datafusion/core/tests/dataframe.rs#L640) # Are there any user-facing changes? Aggregate count on unnested column now works as expected. -- 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]
