alexwilcoxson-rel opened a new issue, #5653: URL: https://github.com/apache/arrow-rs/issues/5653
**Is your feature request related to a problem or challenge? Please describe what you are trying to do.** Azure object store implementation uses default `list_with_offset` implementation. It lists everything and does the filtering client side. This is problematic for Delta Lake with large directories where we only really care about listing the latest files from a certain path. **Describe the solution you'd like** Microsoft pointed me to the [Hadoop Azure filesystem](https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java#L1289) `listStatus` API where `startFrom` is supported. Basically the [starting path is embedded in the opaque continuation token](https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/AzureBlobFileSystemStore.java#L1289) provided when the list API needs to page results. On the initial request this token is created and provided to the list API to start from the path. The downside is that this is not documented. Perhaps this could be an opt-in option if there is hesitation using an undocumented format for the token that could break. -- 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]
