baomidou / baomidou/dynamic-datasource

【功能请求】支持共享数据库连接池

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Description

**Is your feature request related to a problem? Please describe.**
在多租户场景下,连接同一个数据库实例,多个库时。每个库目前都是一个连接池,当租户过多的时候会撑爆数据库的连接数。

**Describe the solution you'd like**
希望在这种场景下可以共用一个连接池,防止出现连接数无限扩张。

**Describe alternatives you've considered**
目前线上处理方案是,每个连接池限制最多 2 个连接。但是 150 个租户,连接数也会到 300

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