---
{
    "title": "ADMIN COMPACT",
    "language": "zh-CN"
}
---

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# ADMIN COMPACT
## description

    该语句用于对指定表分区下的所有副本触发一次Compaction

    语法：

        ADMIN COMPACT TABLE table_name PARTITION partition_name WHERE TYPE='BASE/CUMULATIVE'

    说明：
    
        1. 该语句仅表示让系统尝试将分区下每一个副本的compaction任务提交给compaction线程池，并不保证每一个副本的compaction任务都能成功执行。
        2. 该语句每次只支持对表下的单个分区执行compaction。

## example

    1. 对指定分区下的所有副本触发一次cumulative compaction

        ADMIN COMPACT TABLE tbl PARTITION par01 WHERE TYPE='CUMULATIVE';

    2. 对指定分区下的所有副本触发一次base compaction

        ADMIN COMPACT TABLE tbl PARTITION par01 WHERE TYPE='BASE';
        
## keyword
    ADMIN,COMPACT