Regarding compression in documentation it is mentioned as below,
_source and stored fields can easily take a non negligible amount of disk space. They can be compressed more aggressively by using the
Q. Is the compression only applies to
stored fields and not on
As we know, by default, not all fields are stored and as per above statement, only
stored fields are compressed.
I am interested to know, is applying compression affects overall elasticsearch performance if its use case is searching data, running aggregation, running query etc..
Can we conclude that applying compression has no effect on query or aggregation performance as query and aggregation will be performed on indexed fields and not on _source fields.