encryption of specific columns

Hello,

I've read the 10.x handbook, chapter 18.8. about the various encryption
options. One question remains: If I encrypt a column, for example the
birthdate of PII data, is this still searchable with

SELECT * FROM table WHERE birthdate = 07.12.1955;

Thanks

    matthias
--
Matthias Apitz, ✉ guru@unixarea.de, http://www.unixarea.de/ +49-176-38902045
Public GnuPG key: http://www.unixarea.de/key.pub
May, 9: Спаси́бо освободители! Thank you very much, Russian liberators!