SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier tbl
   Function equals (children 1)
    ExpressionList (children 2)
     Function tupleElement (children 1)
      ExpressionList (children 2)
       Identifier _partition_value
       Literal UInt64_2
     Literal UInt64_0
   Set