SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function throwIf (children 1)
     ExpressionList (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Function countIf (children 1)
         ExpressionList (children 1)
          Function equals (children 1)
           ExpressionList (children 2)
            Identifier part_type
            Literal \'Compact\'
        Literal UInt64_0
    Function throwIf (children 1)
     ExpressionList (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Function countIf (children 1)
         ExpressionList (children 1)
          Function equals (children 1)
           ExpressionList (children 2)
            Identifier part_type
            Literal \'Wide\'
        Literal UInt64_0
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.parts
   Function and (children 1)
    ExpressionList (children 2)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier database
       Function currentDatabase (children 1)
        ExpressionList
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier table
       Literal \'t\'
 Identifier Null
