Hi,
I have added support for decompressing a gzip compressed tar file
at client. pg_basebackup can enable server side compression for
plain format backup with this change.
Added a gzip extractor which decompresses the compressed archive
and forwards it to the next streamer. I have done initial testing and
working on updating the test coverage.
Note: Before applying the patch, please apply Robert's v11 version
of the patches 0001 and 0002.
Thanks,
Dipesh
