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doc: update stt_trigger

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Shengliang Guan 2025-01-16 17:13:49 +08:00
parent 250f410bbb
commit b63842177c
2 changed files with 2 additions and 2 deletions
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docs/en/14-reference/03-taos-sql/02-database.md
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@ -65,7 +65,7 @@ database_option: {
- MINROWS: The minimum number of records in a file block, default is 100.
- KEEP: Indicates the number of days data files are kept, default value is 3650, range [1, 365000], and must be greater than or equal to 3 times the DURATION parameter value. The database will automatically delete data that has been saved for longer than the KEEP value to free up storage space. KEEP can use unit-specified formats, such as KEEP 100h, KEEP 10d, etc., supports m (minutes), h (hours), and d (days) three units. It can also be written without a unit, like KEEP 50, where the default unit is days. The enterprise version supports multi-tier storage feature, thus, multiple retention times can be set (multiple separated by commas, up to 3, satisfying keep 0 \<= keep 1 \<= keep 2, such as KEEP 100h,100d,3650d); the community version does not support multi-tier storage feature (even if multiple retention times are configured, it will not take effect, KEEP will take the longest retention time).
- KEEP_TIME_OFFSET: Effective from version 3.2.0.0. The delay execution time for deleting or migrating data that has been saved for longer than the KEEP value, default value is 0 (hours). After the data file's save time exceeds KEEP, the deletion or migration operation will not be executed immediately, but will wait an additional interval specified by this parameter, to avoid peak business periods.
- STT_TRIGGER: Indicates the number of file merges triggered by disk files. The open-source version is fixed at 1, the enterprise version can be set from 1 to 16. For scenarios with few tables and high-frequency writing, this parameter is recommended to use the default configuration; for scenarios with many tables and low-frequency writing, this parameter is recommended to be set to a larger value.
- STT_TRIGGER: Indicates the number of file merges triggered by disk files. For scenarios with few tables and high-frequency writing, this parameter is recommended to use the default configuration; for scenarios with many tables and low-frequency writing, this parameter is recommended to be set to a larger value.
- SINGLE_STABLE: Indicates whether only one supertable can be created in this database, used in cases where the supertable has a very large number of columns.
- 0: Indicates that multiple supertables can be created.
- 1: Indicates that only one supertable can be created.

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docs/zh/14-reference/03-taos-sql/02-database.md
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@ -67,7 +67,7 @@ database_option: {
- KEEP：表示数据文件保存的天数，缺省值为 3650，取值范围 [1, 365000]，且必须大于或等于 3 倍的 DURATION 参数值。数据库会自动删除保存时间超过 KEEP 值的数据从而释放存储空间。KEEP 可以使用加单位的表示形式，如 KEEP 100h、KEEP 10d 等，支持 m（分钟）、h（小时）和 d（天）三个单位。也可以不写单位，如 KEEP 50，此时默认单位为天。企业版支持[多级存储](../../operation/planning/#%E5%A4%9A%E7%BA%A7%E5%AD%98%E5%82%A8)功能, 因此, 可以设置多个保存时间（多个以英文逗号分隔，最多 3 个，满足 keep 0 \<= keep 1 \<= keep 2，如 KEEP 100h,100d,3650d）; 社区版不支持多级存储功能（即使配置了多个保存时间, 也不会生效, KEEP 会取最大的保存时间）。了解更多，请点击 [关于主键时间戳](https://docs.taosdata.com/reference/taos-sql/insert/)
- KEEP_TIME_OFFSET：自 3.2.0.0 版本生效。删除或迁移保存时间超过 KEEP 值的数据的延迟执行时间，默认值为 0 (小时)。在数据文件保存时间超过 KEEP 后，删除或迁移操作不会立即执行，而会额外等待本参数指定的时间间隔，以实现与业务高峰期错开的目的。
- STT_TRIGGER：表示落盘文件触发文件合并的个数。开源版本固定为 1，企业版本可设置范围为 1 到 16。对于少表高频写入场景，此参数建议使用默认配置；而对于多表低频写入场景，此参数建议配置较大的值。
- STT_TRIGGER：表示落盘文件触发文件合并的个数。对于少表高频写入场景，此参数建议使用默认配置；而对于多表低频写入场景，此参数建议配置较大的值。
- SINGLE_STABLE：表示此数据库中是否只可以创建一个超级表，用于超级表列非常多的情况。
- 0：表示可以创建多张超级表。
- 1：表示只可以创建一张超级表。