SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 7)
    Identifier name
    Identifier partition
    Function formatReadableSize (alias compressed) (children 1)
     ExpressionList (children 1)
      Function sum (alias size) (children 1)
       ExpressionList (children 1)
        Identifier data_compressed_bytes
    Function formatReadableSize (alias uncompressed) (children 1)
     ExpressionList (children 1)
      Function sum (alias usize) (children 1)
       ExpressionList (children 1)
        Identifier data_uncompressed_bytes
    Function round (alias compr_rate) (children 1)
     ExpressionList (children 2)
      Function divide (children 1)
       ExpressionList (children 2)
        Identifier usize
        Identifier size
      Literal UInt64_2
    Function sum (alias rows) (children 1)
     ExpressionList (children 1)
      Identifier rows
    Function count (alias part_count) (children 1)
     ExpressionList
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.projection_parts
   Function and (children 1)
    ExpressionList (children 3)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier database
       Function currentDatabase (children 1)
        ExpressionList
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier table
       Literal \'z\'
     Identifier active
   ExpressionList (children 2)
    Identifier name
    Identifier partition
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier size