Migrate from PostgreSQL

Depending on where your data is currently stored, the steps to migrate it to TimescaleDB are slightly different.

数据存储的数据库不同，迁移到TimecsaleDB的方式也会略有不同。

• ​Same database​: If you want to setup TimescaleDB in the same database in the same PostgreSQL instance as your stored data, ​follow these instructions​.
• Different database​: If you want to migrate data from a different database or a different PostgreSQL instance altogether, ​follow these instructions​.

• 同一个数据库：如果在当前存储数据的PostgreSQL实例或数据库中创建TimescaleDB，参见数据库内迁移章节。
• 不同数据库：如果想将所有数据全部移动到不同的数据库或不同的PostgreSQL实例中，参见不同数据库迁移章节。

We assume that the new database has already been ​setup​ with the timescale extension.

我们假定已经使用timescale扩展创建好了新数据库。