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Queries see the latest snapshot of def~dataset def~table as of a given `delta commit` delta commit  or commit  def~instant-action-type.; In case of def~merge-on-read (MOR) table, it provides near-real time def~dataset def~tables (few mins) by merging the base and delta files of the latest file slice on-the-fly. For def~copy-on-write (COW), it provides a drop-in replacement for existing parquet tables (or tables of same def~base-file type), while providing upsert/delete and other write side features.