foxtail463 opened a new pull request, #67295: URL: https://github.com/apache/doris/pull/67295
Problem Summary: FixedReadPlan previously preferred the row store whenever a complete row-store column was available, regardless of the caller’s update mode. This caused fixed partial-update conflict reconstruction to materialize and decode the complete JSONB row when only the updated columns were required. However, globally switching to physical-column reads would break UPSERT semantics for values such as raw Variant data. Physical-column reads also repeated segment setup for each requested column. Solution: Introduce an explicit read strategy selected according to the update mode. Fixed partial updates read their current projection from physical columns, while UPSERT and historical, flexible, sequence, and row-binlog paths retain row-store-first behavior. Batch physical-column reads so each planned segment is loaded once and column iterators are created and released sequentially. -- 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]
