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SHOW TABLET
description
该语句用于显示 tablet 相关的信息(仅管理员使用)
语法:
SHOW TABLET
[FROM [db_name.]table_name | tablet_id] [partiton(partition_name_1, partition_name_1)]
[where [version=1] [and backendid=10000] [and state="NORMAL|ROLLUP|CLONE|DECOMMISSION"]]
[order by order_column]
[limit [offset,]size]
现在show tablet命令支持按照按照以下字段进行过滤:partition, index name, version, backendid,
state,同时支持按照任意字段进行排序,并且提供limit限制返回条数。
example
1. 显示指定 db 的下指定表所有 tablet 信息
SHOW TABLET FROM example_db.table_name;
// 获取partition p1和p2的tablet信息
SHOW TABLET FROM example_db.table_name partition(p1, p2);
// 获取10个结果
SHOW TABLET FROM example_db.table_name limit 10;
// 从偏移5开始获取10个结果
SHOW TABLET FROM example_db.table_name limit 5,10;
// 按照backendid/version/state字段进行过滤
SHOW TABLET FROM example_db.table_name where backendid=10000 and version=1 and state="NORMAL";
// 按照version字段进行排序
SHOW TABLET FROM example_db.table_name where backendid=10000 order by version;
// 获取index名字为t1_rollup的tablet相关信息
SHOW TABLET FROM example_db.table_name where indexname="t1_rollup";
2. 显示指定 tablet id 为 10000 的 tablet 的父层级 id 信息
SHOW TABLET 10000;
keyword
SHOW,TABLET,LIMIT
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