Add delete, update, and merge-insert (UPSERT) operations#26
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June 7, 2026 23:03
Expose Lance's native delete/update/merge_insert operations through daft-lance. All three follow existing patterns using construct_lance_dataset() and support io_config, version, conflict retries, and storage_options. Co-Authored-By: Beinan Wang <beinanwang@microsoft.com>
Co-Authored-By: Beinan Wang <beinanwang@microsoft.com>
Co-Authored-By: Beinan Wang <beinanwang@microsoft.com>
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Summary
daft_lance.delete(uri, predicate)— delete rows matching a SQL string or PyArrow expressiondaft_lance.update(uri, updates, where=)— update columns using SQL expressions with optional filterdaft_lance.merge_insert(df, uri, on=)— UPSERT from a Daft DataFrame with full MergeInsertBuilder support (update_all, delete, insert_all, conditional updates, composite keys)All three follow existing patterns using
construct_lance_dataset()and supportio_config,version, conflict retries, andstorage_options.Closes AICD-159
Test plan
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