diff --git a/docs/en/12-taos-sql/22-meta.md b/docs/en/12-taos-sql/22-meta.md index 37304633e7..3f6bfef1d5 100644 --- a/docs/en/12-taos-sql/22-meta.md +++ b/docs/en/12-taos-sql/22-meta.md @@ -74,27 +74,27 @@ Provides information about the cluster. Provides information about user-created databases. Similar to SHOW DATABASES. -| # | **Column** | **Data Type** | **Description** | +| # | **Column** | **Data Type** | **Description** | | --- | :------------------: | ---------------- | ------------------------------------------------ | -| 1| name| BINARY(32)| Database name | +| 1 | name | VARCHAR(64) | Database name | | 2 | create_time | TIMESTAMP | Creation time | | 3 | ntables | INT | Number of standard tables and subtables (not including supertables) | | 4 | vgroups | INT | Number of vgroups. It should be noted that `vnodes` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 6 | replica | INT | Number of replicas. It should be noted that `replica` is a TDengine keyword and needs to be escaped with ` when used as a column name. | -| 7 | strict | BINARY(4) | Obsoleted | -| 8 | duration | INT | Duration for storage of single files. It should be noted that `duration` is a TDengine keyword and needs to be escaped with ` when used as a column name. | -| 9 | keep | INT | Data retention period. It should be noted that `keep` is a TDengine keyword and needs to be escaped with ` when used as a column name. | +| 7 | strict | VARCHAR(4) | Obsoleted | +| 8 | duration | VARCHAR(10) | Duration for storage of single files. It should be noted that `duration` is a TDengine keyword and needs to be escaped with ` when used as a column name. | +| 9 | keep | VARCHAR(32) | Data retention period. It should be noted that `keep` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 10 | buffer | INT | Write cache size per vnode, in MB. It should be noted that `buffer` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 11 | pagesize | INT | Page size for vnode metadata storage engine, in KB. It should be noted that `pagesize` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 12 | pages | INT | Number of pages per vnode metadata storage engine. It should be noted that `pages` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 13 | minrows | INT | Maximum number of records per file block. It should be noted that `minrows` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 14 | maxrows | INT | Minimum number of records per file block. It should be noted that `maxrows` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 15 | comp | INT | Compression method. It should be noted that `comp` is a TDengine keyword and needs to be escaped with ` when used as a column name. | -| 16 | precision | BINARY(2) | Time precision. It should be noted that `precision` is a TDengine keyword and needs to be escaped with ` when used as a column name. | -| 17 | status | BINARY(10) | Current database status | -| 18 | retentions | BINARY (60) | Aggregation interval and retention period. It should be noted that `retentions` is a TDengine keyword and needs to be escaped with ` when used as a column name. | +| 16 | precision | VARCHAR(2) | Time precision. It should be noted that `precision` is a TDengine keyword and needs to be escaped with ` when used as a column name. | +| 17 | status | VARCHAR(10) | Current database status | +| 18 | retentions | VARCHAR(60) | Aggregation interval and retention period. It should be noted that `retentions` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 19 | single_stable | BOOL | Whether the database can contain multiple supertables. It should be noted that `single_stable` is a TDengine keyword and needs to be escaped with ` when used as a column name. | -| 20 | cachemodel | BINARY(60) | Caching method for the newest data. It should be noted that `cachemodel` is a TDengine keyword and needs to be escaped with ` when used as a column name. | +| 20 | cachemodel | VARCHAR(60) | Caching method for the newest data. It should be noted that `cachemodel` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 21 | cachesize | INT | Memory per vnode used for caching the newest data. It should be noted that `cachesize` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 22 | wal_level | INT | WAL level. It should be noted that `wal_level` is a TDengine keyword and needs to be escaped with ` when used as a column name. | | 23 | wal_fsync_period | INT | Interval at which WAL is written to disk. It should be noted that `wal_fsync_period` is a TDengine keyword and needs to be escaped with ` when used as a column name. | diff --git a/docs/zh/12-taos-sql/22-meta.md b/docs/zh/12-taos-sql/22-meta.md index 35794ec269..7d14711dea 100644 --- a/docs/zh/12-taos-sql/22-meta.md +++ b/docs/zh/12-taos-sql/22-meta.md @@ -76,25 +76,25 @@ TDengine 内置了一个名为 `INFORMATION_SCHEMA` 的数据库，提供对数 | # | **列名** | **数据类型** | **说明** | | --- | :------------------: | ---------------- | ------------------------------------------------ | -| 1 | name | BINARY(32) | 数据库名 | +| 1 | name | VARCHAR(64) | 数据库名 | | 2 | create_time | TIMESTAMP | 创建时间 | | 3 | ntables | INT | 数据库中表的数量，包含子表和普通表但不包含超级表 | | 4 | vgroups | INT | 数据库中有多少个 vgroup。需要注意，`vgroups` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 6 | replica | INT | 副本数。需要注意，`replica` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | -| 7 | strict | BINARY(4) | 废弃参数 | -| 8 | duration | INT | 单文件存储数据的时间跨度。需要注意，`duration` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | -| 9 | keep | INT | 数据保留时长。需要注意，`keep` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | +| 7 | strict | VARCHAR(4) | 废弃参数 | +| 8 | duration | VARCHAR(10) | 单文件存储数据的时间跨度。需要注意，`duration` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | +| 9 | keep | VARCHAR(32) | 数据保留时长。需要注意，`keep` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 10 | buffer | INT | 每个 vnode 写缓存的内存块大小，单位 MB。需要注意，`buffer` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 11 | pagesize | INT | 每个 VNODE 中元数据存储引擎的页大小，单位为 KB。需要注意，`pagesize` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 12 | pages | INT | 每个 vnode 元数据存储引擎的缓存页个数。需要注意，`pages` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 13 | minrows | INT | 文件块中记录的最大条数。需要注意，`minrows` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 14 | maxrows | INT | 文件块中记录的最小条数。需要注意，`maxrows` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 15 | comp | INT | 数据压缩方式。需要注意，`comp` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | -| 16 | precision | BINARY(2) | 时间分辨率。需要注意，`precision` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | -| 17 | status | BINARY(10) | 数据库状态 | -| 18 | retentions | BINARY (60) | 数据的聚合周期和保存时长。需要注意，`retentions` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | +| 16 | precision | VARCHAR(2) | 时间分辨率。需要注意，`precision` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | +| 17 | status | VARCHAR(10) | 数据库状态 | +| 18 | retentions | VARCHAR(60) | 数据的聚合周期和保存时长。需要注意，`retentions` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 19 | single_stable | BOOL | 表示此数据库中是否只可以创建一个超级表。需要注意，`single_stable` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | -| 20 | cachemodel | BINARY(60) | 表示是否在内存中缓存子表的最近数据。需要注意，`cachemodel` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | +| 20 | cachemodel | VARCHAR(60) | 表示是否在内存中缓存子表的最近数据。需要注意，`cachemodel` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 21 | cachesize | INT | 表示每个 vnode 中用于缓存子表最近数据的内存大小。需要注意，`cachesize` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 22 | wal_level | INT | WAL 级别。需要注意，`wal_level` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 | | 23 | wal_fsync_period | INT | 数据落盘周期。需要注意，`wal_fsync_period` 为 TDengine 关键字，作为列名使用时需要使用 ` 进行转义。 |