public boolean hasMeasures(String expr, CubeInterface cube) {
   String alias = cubeql.getAliasForTableName(cube.getName());
   ExpressionContext ec = getExpressionContext(expr, alias);
   boolean hasMeasures = false;
   for (ExprSpecContext esc : ec.allExprs) {
     if (esc.getTblAliasToColumns().get(alias) != null) {
       for (String cubeCol : esc.getTblAliasToColumns().get(alias)) {
         if (cube.getMeasureByName(cubeCol) != null) {
           hasMeasures = true;
           break;
         }
       }
     }
   }
   ec.hasMeasures = hasMeasures;
   return hasMeasures;
 }