ContentResolver.query()分组查询通话记录

String[] CALL_LOG_PROJECTION = new String[] { 
                CallLog.Calls._ID,
                CallLog.Calls.NUMBER,
                CallLog.Calls.DATE,
                CallLog.Calls.DURATION,
                CallLog.Calls.TYPE,
                CallLog.Calls.CACHED_NAME,
                CallLog.Calls.CACHED_NUMBER_TYPE,
                CallLog.Calls.CACHED_NUMBER_LABEL,
                "COUNT(*) AS " + CALLS_COUNT };
String selection = "0==0) GROUP BY (" + CallLog.Calls.NUMBER;

c = resolver.query(CallLog.Calls.CONTENT_URI, CALL_LOG_PROJECTION,selection, null,CallLog.Calls.DEFAULT_SORT_ORDER + " limit "+size);