fix: limit doc error
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@ -23,7 +23,7 @@ The following characters cannot occur in a password: single quotation marks ('),
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## General Limits
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- Maximum length of database name is 32 bytes
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- Maximum length of database name is 64 bytes
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- Maximum length of table name is 192 bytes, excluding the database name prefix and the separator.
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- Maximum length of each data row is 48K bytes. Note that the upper limit includes the extra 2 bytes consumed by each column of BINARY/NCHAR type.
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- The maximum length of a column name is 64 bytes.
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@ -35,7 +35,7 @@ The following characters cannot occur in a password: single quotation marks ('),
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- Maximum numbers of databases, STables, tables are dependent only on the system resources.
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- The number of replicas can only be 1 or 3.
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- The maximum length of a username is 23 bytes.
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- The maximum length of a password is 15 bytes.
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- The maximum length of a password is 128 bytes.
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- The maximum number of rows depends on system resources.
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- The maximum number of vnodes in a database is 1024.
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@ -24,19 +24,19 @@ description: 合法字符集和命名中的限制规则
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## 一般限制
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- 数据库名最大长度为 32
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- 表名最大长度为 192,不包括数据库名前缀和分隔符
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- 数据库名最大长度为 64 字节
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- 表名最大长度为 192 字节,不包括数据库名前缀和分隔符
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- 每行数据最大长度 48KB (注意:数据行内每个 BINARY/NCHAR 类型的列还会额外占用 2 个字节的存储位置)
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- 列名最大长度为 64
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- 列名最大长度为 64 字节
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- 最多允许 4096 列,最少需要 2 列,第一列必须是时间戳。
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- 标签名最大长度为 64
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- 标签名最大长度为 64 字节
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- 最多允许 128 个,至少要有 1 个标签,一个表中标签值的总长度不超过 16KB
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- SQL 语句最大长度 1048576 个字符
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- SELECT 语句的查询结果,最多允许返回 4096 列(语句中的函数调用可能也会占用一些列空间),超限时需要显式指定较少的返回数据列,以避免语句执行报错
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- 库的数目,超级表的数目、表的数目,系统不做限制,仅受系统资源限制
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- 数据库的副本数只能设置为 1 或 3
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- 用户名的最大长度是 23 个字节
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- 用户密码的最大长度是 15 个字节
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- 用户名的最大长度是 23 字节
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- 用户密码的最大长度是 128 字节
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- 总数据行数取决于可用资源
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- 单个数据库的虚拟结点数上限为 1024
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