SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 7)
    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 value1
      Identifier weight_nullable
    Function avgWeighted (children 1)
     ExpressionList (children 2)
      Identifier value2
      Identifier weight_nullable
    Function avgWeighted (children 1)
     ExpressionList (children 2)
      Identifier value3
      Identifier weight_nullable
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_table_null_specifics
   ExpressionList (children 1)
    Identifier id
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier id
