The driver supports now zlib and zstd (thanks to silviucpp (Silviu Caragea) · GitHub for the Erlang bindings). You can use the master branch and activate the compression by appending compressors=zlib,zstd to the URL connection string. Details can be found here. I am currently testing the master branch. If nothing conspicuous occurs during the test phase, a new version 1.5.0 will be released on hex.pm.
