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35be20cb05
mutate_as and load now write directly to target tables and call the publisher once at the end with per-table expected versions; the Run state machine, _graph_runs.lance writers, __run__ staging branches, and server /runs/* endpoints are removed. Multi-statement mutations remain atomic at the manifest level via an in-memory MutationStaging accumulator that gives read-your-writes within a query and a single publish at the end. Concurrent-writer conflicts surface as ExpectedVersionMismatch (HTTP 409 manifest_conflict) instead of the old DivergentUpdate merge shape. Documents one known limitation in docs/runs.md: a multi-statement mid-query failure where op-N writes a Lance fragment and op-N+1 fails leaves Lance HEAD ahead of the manifest until a follow-up introduces per-table Lance branches. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> |
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