SSL Compression - doesn't work? - Mailing list pgsql-general

I'm wondering how, and if SSL compression works correctly.

Here is how I tested it:

- PostgreSQL 9.3.4 x86 on Windows 7 x64

- .crt/.key files by openssl, and placed in database cluster folder

- postgres.exe ran with: --ssl="on" --ssl_cert_file="test.crt" --ssl_key_file="test.key"

- connection made by pgadmin with SSL=prefer, SSL Compression=True

- when connected I see in properties: Encryptions=SSL encrypted, SSL Compression=yes

- I've dumped TCP transfer and I can tell that data is encrypted

Now when I run query like:

SELECT lpad('', 1024*1024, 'A')

then I see that there is a TCP transfer of 1,01MB (so 1MB of string data, and some pg header/data).

If I turn off SSL Compression data transfer between postgres and pgadmin is still 1,01MB (but in properties I see SSL Compression=no)