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@@ -6,12 +6,12 @@ tags: []
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categories: ["clickhouse"]
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---
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# Join 表引擎简介
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## Join 表引擎简介
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- 数据先写内存,再同步到磁盘,服务重启后全量加载到内存
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- 与 Set 表引擎共用大部分处理逻辑
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- 简单封装了一层 JOIN 查询,主要用做 JOIN 查询
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# 创建 Join 引擎表
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## 创建 Join 引擎表
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- 声明
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```sql
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ENGINE = Join(join_strictness, join_type, key1[, key2, ...])
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@@ -22,6 +22,6 @@ categories: ["clickhouse"]
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- key1, key2 ...: 连接键,关联字段
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- 如果连接精度是 ANY,写入数据时会忽略连接键相同的数据
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# 参考
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## 参考
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- [ClickHouse 表引擎之 Join](/post/ch-search/#JOIN)
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