SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 3)
    Function finalizeAggregation (children 1)
     ExpressionList (children 1)
      Function uniqThetaIntersect (children 1)
       ExpressionList (children 2)
        Identifier a
        Identifier b
    Function finalizeAggregation (children 1)
     ExpressionList (children 1)
      Identifier a
    Function finalizeAggregation (children 1)
     ExpressionList (children 1)
      Identifier b
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 1)
          ExpressionList (children 2)
           Function arrayReduce (alias a) (children 1)
            ExpressionList (children 2)
             Literal \'uniqThetaState\'
             Function array (children 1)
              ExpressionList
           Function arrayReduce (alias b) (children 1)
            ExpressionList (children 2)
             Literal \'uniqThetaState\'
             Function array (children 1)
              ExpressionList
