Files
doris/docs/zh-CN/sql-reference/sql-statements/Data Manipulation/SHOW TABLETS.md
ChPi f57f02bbf2 [improvement] Support show tablets stmt (#7970)
change `show tablet from tbl` to `show tablets from tbl`
2022-03-05 15:25:57 +08:00

2.3 KiB

title, language
title language
SHOW TABLETS zh-CN

SHOW TABLETS

description

该语句用于显示 tablet 相关的信息(仅管理员使用)
语法:
    SHOW TABLETS
    [FROM [db_name.]table_name] [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 tablets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

    // 显示指定 db 的下指定表所有 tablet 信息
    SHOW TABLETS FROM example_db.table_name;

    // 获取partition p1和p2的tablet信息
    SHOW TABLETS FROM example_db.table_name partition(p1, p2);

    // 获取10个结果
    SHOW TABLETS FROM example_db.table_name limit 10;

    // 从偏移5开始获取10个结果
    SHOW TABLETS FROM example_db.table_name limit 5,10;

    // 按照backendid/version/state字段进行过滤
    SHOW TABLETS FROM example_db.table_name where backendid=10000 and version=1 and state="NORMAL";

    // 按照version字段进行排序
    SHOW TABLETS 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 TABLETS FROM example_db.table_name where indexname="t1_rollup";

keyword

SHOW,TABLETS,LIMIT