colben/www.colben.cn
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

update

Browse Source
This commit is contained in:
colben
2021-11-14 15:52:46 +08:00
parent 915c231124
commit 1e344dc204
112 changed files with 1039 additions and 1039 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
content/post/ch-merge.md
View File

@@ -6,13 +6,13 @@ tags: []
categories: ["clickhouse"]
---
# Merge 表引擎简介
## Merge 表引擎简介
- 本身不存储数据，只整合其他数据表
- 不支持数据写入
- 合并异步查询的结果集
- 各异步查询的数据表需要在同一个数据库下，且表结构相同，表引擎和分区定义可不同
# 创建 Merge 表引擎
## 创建 Merge 表引擎
- 声明
```sql
ENGINE = Merge(database, table_name)