SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Identifier t
      Literal \'2020-01-03\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 5)
          ExpressionList (children 1)
           Identifier day1 (alias t)
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier test_table
          Function equals (children 1)
           ExpressionList (children 2)
            Identifier t
            Literal \'2020-01-03\'
          ExpressionList (children 1)
           Identifier t
          Set