SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 5)
    Identifier id
    Function avgWeighted (children 1)
     ExpressionList (children 2)
      Identifier value1
      Identifier weight
    Function avgWeighted (children 1)
     ExpressionList (children 2)
      Identifier value2
      Identifier weight
    Function avgWeighted (children 1)
     ExpressionList (children 2)
      Identifier value3
      Identifier weight
    Function avgWeighted (children 1)
     ExpressionList (children 2)
      Identifier value4
      Identifier weight
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_table_nullable_signed_values
   ExpressionList (children 1)
    Identifier id
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id
