SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 3)
    Function count (children 1)
     ExpressionList
    Function uniqExact (children 1)
     ExpressionList (children 1)
      Identifier partition_id
    Function sum (children 1)
     ExpressionList (children 1)
      Identifier rows
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.parts_columns
   Function and (children 1)
    ExpressionList (children 5)
     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_lwu_deletes_3\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier column
       Literal \'_row_exists\'
     Identifier active
     Function startsWith (children 1)
      ExpressionList (children 2)
       Identifier name
       Literal \'patch\'
