* Yield the number of rows updated in the table. * @param[out] tuple_batch The tuple batch with one integer indicating the number of rows updated in the table * @param[out] rid_batch The next tuple RID batch produced by the update (ignore, not used) * @param batch_size The number of tuples to be included in the batch (default: BUSTUB_BATCH_SIZE) * @return `true` if a tuple was produced, `false
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