云数据库 GEMINIDB-支持的命令列表:元数据管理

时间：2023-11-22 09:19:32

云数据库 GEMINIDB 数据库命令

表3 元数据管理支持的命令列表
命令名称	读写模式下是否支持该命令	只读模式下是否支持该命令
create database	√	√
show databases	√	√
drop database	√	√
show measurements	√	√
show measurement cardinality	√	√
show measurement exact cardinality	√	√
drop measurement	√	√
create retention policy	√	√
alter retention policy	√	√
drop retention policy	√	√
show retention policies	√	√
create continuous query	√	√
show continuous queries	√	√
drop continuous query	√	√
show series	√	√
show series cardinality	√	√
show series exact cardinality	√	√
drop series	√	√
show tag keys	√	√
show tag key cardinality	√	√
show tag key exact cardinality	√	√
show tag values	√	√
show tag values cardinality	√	√
show tag values exact cardinality	√	√
show field keys	√	√
show field key cardinality	√	√
show field key exact cardinality	√	√
show shards	√	√
show shard groups	√	√
drop shard	√	√