docs: private StringBuilder calculateCacheKeyInternal(String sql,
  			int resultSetType, int resultSetConcurrency) {
  		StringBuilder tmp = new StringBuilder(sql.length()+20);
  		tmp.append(sql);
  
  		tmp.append(", T");
  		tmp.append(resultSetType);
  		tmp.append(", C");
  		tmp.append(resultSetConcurrency);
  		return tmp;
  	}