doc: minor changes
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Shengliang Guan
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@ -318,7 +318,7 @@ Configuration parameters for each dnode in the system. Users with SYSINFO attrib
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Note: Users with SYSINFO property set to 0 cannot view this table.
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| # | **Column Name** | **Data Type** | **Description** |
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| ---- | :-------------: | -------------- | ------------------------------------ |
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|:-----|:----------------|:---------------|:-------------------------------------|
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| 1 | user_name | VARCHAR(24) | Username |
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| 2 | privilege | VARCHAR(10) | Permission description |
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| 3 | db_name | VARCHAR(65) | Database name |
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@ -329,16 +329,16 @@ Note: Users with SYSINFO property set to 0 cannot view this table.
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## INS_DISK_USAGE
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| # | **Column Name** | **Data type** | **Description**|
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| --- | :----------: | ------------ | ------------------------|
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| 1 | db_name | VARCHAR(32) | Database name
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| 2 | vgroup_id | INT | vgroup ID
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| 3 | wal | BIGINT | WAL file size, in KB
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| 4 | data1 | BIGINT | Data file size on primary storage, in KB
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| 5 | data2 | BIGINT | Data file size on secondary storage, in KB
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| 6 | data3 | BIGINT | Data file size on tertiary storage, in KB
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| 7 | cache_rdb | BIGINT | Size of last/last_row files, in KB
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| 8 | table_meta | BIGINT | Size of meta files, in KB
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| 9 | s3 | BIGINT | Size occupied on S3, in KB
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| 10 | raw_data | BIGINT | Estimated size of raw data, in KB
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|:----|:-----------|:-----------|:--------------------|
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| 1 | db_name | VARCHAR(32) | Database name |
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| 2 | vgroup_id | INT | vgroup ID |
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| 3 | wal | BIGINT | WAL file size, in KB |
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| 4 | data1 | BIGINT | Data file size on primary storage, in KB |
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| 5 | data2 | BIGINT | Data file size on secondary storage, in KB |
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| 6 | data3 | BIGINT | Data file size on tertiary storage, in KB |
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| 7 | cache_rdb | BIGINT | Size of last/last_row files, in KB |
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| 8 | table_meta | BIGINT | Size of meta files, in KB |
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| 9 | s3 | BIGINT | Size occupied on S3, in KB |
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| 10 | raw_data | BIGINT | Estimated size of raw data, in KB |
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note:
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@ -232,6 +232,3 @@ SHOW db_name.disk_info;
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该命令本质上等同于 `select sum(data1 + data2 + data3)/sum(raw_data), sum(data1 + data2 + data3) from information_schema.ins_disk_usage where db_name="dbname"`
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@ -124,7 +124,7 @@ INTERVAL 子句允许使用 AUTO 关键字来指定窗口偏移量，此时如
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```sql
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-- 有起始时间限制，从 '2018-10-03 14:38:05' 切分时间窗口
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SELECT COUNT(*) FROM meters WHERE _rowts >= '2018-10-03 14:38:05' INTERVAL (1m， AUTO);
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SELECT COUNT(*) FROM meters WHERE _rowts >= '2018-10-03 14:38:05' INTERVAL (1m, AUTO);
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-- 无起始时间限制，不生效，仍以 0 为偏移量
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SELECT COUNT(*) FROM meters WHERE _rowts < '2018-10-03 15:00:00' INTERVAL (1m, AUTO);
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@ -304,7 +304,7 @@ TDengine 内置了一个名为 `INFORMATION_SCHEMA` 的数据库，提供对数
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## INS_STREAMS
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| # | **列名** | **数据类型** | **说明** |
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| --- | :----------: | ------------ | -------------------------------------------------------------------------------------------------------------------- |
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|:----|:-----------|:------------|:--------|
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| 1 | stream_name | VARCHAR(64) | 流计算名称 |
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| 2 | create_time | TIMESTAMP | 创建时间 |
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| 3 | sql | VARCHAR(1024) | 创建流计算时提供的 SQL 语句 |
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@ -320,7 +320,7 @@ TDengine 内置了一个名为 `INFORMATION_SCHEMA` 的数据库，提供对数
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注：SYSINFO 属性为 0 的用户不能查看此表。
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| # | **列名** | **数据类型** | **说明** |
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| --- | :----------: | ------------ | -------------------------------------------------------------------------------------------------------------------- |
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|:----|:-----------|:------------|:--------|
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| 1 | user_name | VARCHAR(24) | 用户名
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| 2 | privilege | VARCHAR(10) | 权限描述
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| 3 | db_name | VARCHAR(65) | 数据库名称
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@ -330,16 +330,16 @@ TDengine 内置了一个名为 `INFORMATION_SCHEMA` 的数据库，提供对数
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## INS_DISK_USAGE
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| # | **列名** | **数据类型** | **说明** |
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| --- | :----------: | ------------ | -------------------------------------------------------------------------------------------------------------------- |
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| 1 | db_name | VARCHAR(32) | 数据库名称
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| 2 | vgroup_id | INT | vgroup 的 ID
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| 3 | wal | BIGINT | wal 文件大小, 单位为 K
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| 4 | data1 | BIGINT | 一级存储上数据文件的大小,单位为KB
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| 5 | data2 | BIGINT | 二级存储上数据文件的大小,单位为 KB
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| 6 | data3 | BIGINT | 三级存储上数据文件的大小, 单位为KB
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| 7 | cache_rdb | BIGINT | last/last_row 文件的大小,单位为KB
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| 8 | table_meta | BIGINT | meta 文件的大小, 单位为KB
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| 9 | s3 | BIGINT | s3 上占用的大小, 单位为KB
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| 10 | raw_data | BIGINT | 预估的原始数据的大小, 单位为KB
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|:----|:-----------|:------------|:--------|
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| 1 | db_name | VARCHAR(32) | 数据库名称 |
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| 2 | vgroup_id | INT | vgroup 的 ID |
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| 3 | wal | BIGINT | wal 文件大小, 单位为 K |
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| 4 | data1 | BIGINT | 一级存储上数据文件的大小,单位为KB |
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| 5 | data2 | BIGINT | 二级存储上数据文件的大小,单位为 KB |
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| 6 | data3 | BIGINT | 三级存储上数据文件的大小, 单位为KB |
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| 7 | cache_rdb | BIGINT | last/last_row 文件的大小,单位为KB |
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| 8 | table_meta | BIGINT | meta 文件的大小, 单位为KB |
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| 9 | s3 | BIGINT | s3 上占用的大小, 单位为KB |
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| 10 | raw_data | BIGINT | 预估的原始数据的大小, 单位为KB |
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