keksmd opened a new issue, #948: URL: https://github.com/apache/incubator-graphar/issues/948
## Scope Implement the IO-neutral contract between GraphAr layout/readers and physical backends: - immutable read/write requests carrying URI, projection, row range, predicate, and limit hints; - batches/cursors and schema mapping that do not require Arrow as the public representation; - explicit accepted/declined pushdown capabilities with semantics-preserving fallback; - SPI boundary that prevents GraphAr metadata semantics from leaking into format backends. ## Acceptance - Contract tests demonstrate projection, range, predicate, and limit propagation. - Declined capabilities preserve result correctness and are observable. - No Parquet/Hadoop/Arrow dependency enters `graphar-info` or the core API. ## Dependencies and links - Architecture: #756 and dependency discussion #738. - Storage boundary: #947. - This is the prerequisite for the Parquet backend and reader vertical; no code PR precedes this issue. -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
