SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test1
   Function and (children 1)
    ExpressionList (children 2)
     Function equals (children 1)
      ExpressionList (children 2)
       Function toDate (children 1)
        ExpressionList (children 1)
         Identifier p
       Literal \'2020-09-01\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier k
       Literal UInt64_2
