timeseries_views.compression_chunkgroup

The compression_chunkgroup view in the timeseries_views schema allows user to view the compression ratios of all chunk groups in a time-series table. after_compression_size and compression_ratio are not empty only after chunk groups are compressed.

Table 1 compression_chunkgroup columns

Field	Type	Description
schemaname	name	Name of a schema to which a time-series table belongs.
tablename	name	Name of a time-series table.
chunkgroupname	name	Name of a chunk group in a time-series table.
before_compression_size	bigint	Size of a chunk group in a time-series table before the chunk group is compressed. The unit is KB.
after_compression_size	bigint	Size of a chunk group in a time-series table after the chunk group is compressed. The unit is KB.
compression_ratio	float	Compression ratio of a chunk group in a time-series table.