create keyspace yqjc_bbs;
use yqjc_bbs;
create column family title with comparator = AsciiType and keys_cached=1.0 and rows_cached = 1000000;[......]
create keyspace yqjc_bbs;
use yqjc_bbs;
create column family title with comparator = AsciiType and keys_cached=1.0 and rows_cached = 1000000;[......]