private async Task GetKeyHistoryAsync()
恩雅音乐是一家集乐器研发、智能音频与音乐教育于一体的创新型科技音乐公司，秉承“技术驱动进步”理念，致力于通过数字化精准制造与音频算法技术降低音乐演奏门槛，其尤克里里与民谣吉他热销全球40多个国家。
。关于这个话题，新收录的资料提供了深入分析
For aggregations, things are a little more complex. A full table scan is also required unless the user is grouping by the primary key and sets optimize_aggregation_in_order=1. In this case, a propagation signal is sent once sufficient results are acquired. Provided previous steps of the query are capable of streaming the data, e.g., filter, then this mechanism will work, and the query will terminate early. Normally, however, an aggregation must consume all table data before returning and applying the LIMIT as the final stage.
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