tustvold commented on issue #7119: URL: https://github.com/apache/arrow-rs/issues/7119#issuecomment-2652177651
> why does the JSON reader take pains to do it in the expected way Arguably it probably shouldn't, and probably suffers from the same issue as https://github.com/apache/arrow-rs/issues/6510 > Why does RecordBatch take pains to validate nested NULL masks this way Because the value is arbitrary and therefore can be NULL > what would be the "correct" way to project out a nested column for columnar access, e.g. SQL SELECT a.b FROM t? Is it now the user's responsibility to validate the nesting of null masks manually? When projecting a nested column, one must take into account the validity masks of any parents. This an inherent property of the arrow specification > (d) does this behavior need to be documented under Those methods only refer to the array in question, so I wouldn't expect it no -- 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]
