TheR1sing3un opened a new pull request, #10094: URL: https://github.com/apache/paimon/pull/10094
### Purpose Allow local `MERGE INTO` to carry vector, ARRAY, MAP and ROW payload columns. Inserting into an empty target already worked, but subsequent updates, inserts and deletes failed because Arrow's join rejects these non-key types, including unused nested source columns in delete operations. Join only key columns and row indices, then gather the original payload columns with Arrow `take`. Internal join names are isolated from user columns. The existing coalesced-key schema, clause evaluation and duplicate-match validation are retained; join-key type support is unchanged. ### Tests - All 29 table-merge tests passed on PyArrow 16.0.0 and 19.0.1, including existing batch/stream and self-merge coverage. - New real-table regressions cover fixed-size vectors, lists, maps and structs; chunked/sliced sources; nested null/empty values; updates, inserts and deletes; mapped composite keys and null-key semantics; conditional updates using old target payloads; and duplicate-match rejection before a commit. - New regressions fail against the original implementation. - Python 3.6 syntax, flake8, license headers and `git diff --check` passed. -- 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]
