About tablespaces

Hypertables consist of a number of chunks, and each chunk can be located in a specific tablespace. This allows you to grow your hypertables across many disks. When you create a new chunk, a tablespace is automatically selected to store the chunk’s data.

A hypertable can be partitioned in multiple dimensions, but only one of the dimensions is used to determine the tablespace assigned to a particular hypertable chunk. If a hypertable has one or more hash-partitioned, or space, dimensions, it uses the first hash-partitioned dimension. Otherwise, it uses the first time dimension.

Hypertables that are only time-partitioned add new partitions continuously, and therefore have chunks assigned to tablespaces in a way similar to round-robin.

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