thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-25 17:12:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update docs/zh/faq/operations/delete-old-data.md

Browse Source
This commit is contained in:
Han Fei 2024-01-22 00:28:20 +01:00 committed by GitHub
parent a1a5ae59d5
commit 30c6e1f151
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
docs/zh/faq/operations/delete-old-data.md
View File

@ -11,7 +11,7 @@ sidebar_position: 20
## TTL {#ttl}
ClickHouse允许在某些条件发生时自动删除值。这个条件被配置为基于任何列的表达式，通常只是针对任何时间戳列的静态偏移量。
ClickHouse 允许在某些条件发生时自动删除值。这个条件被配置为基于任何列的表达式，通常只是针对任何时间戳列的静态偏移量。
这种方法的主要优势是它不需要任何外部系统来触发，一旦配置了TTL，数据删除就会自动在后台发生。