短语词组短语to coalesce 合并;积聚coalesce partition 合并分区coalesce partitions 收缩表分区Coalesce Operator 联合操作符coalesce v 结合index coalesce 索引合并coalesce e 联合;合并;结合coalesce into 聚集成polarize coalesce 两极分化 返回 coalesce