qop.prepare(mbx, res, mbidx, chunkSize+1);
qop.prepare(mbx, res, mbidx, mParams, chunkSize+1);
    protected void prepare(Mailbox mbx, ZimbraQueryResultsImpl res, MailboxIndex mbidx, int chunkSize) throws ServiceException, IOException    {        this.setupResults(mbx, res);        for (int i = 0; i < mQueryOperations.size(); i++) {            QueryOperation qop = (QueryOperation)mQueryOperations.get(i);            if (mLog.isDebugEnabled()) {                mLog.debug("Executing: "+qop.toString());            }            qop.prepare(mbx, res, mbidx, chunkSize+1); // add 1 to chunksize b/c we buffer        }        internalGetNext();    }