CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 6)
   ColumnDeclaration id (children 1)
    DataType UInt32
   ColumnDeclaration track (children 1)
    DataType UInt8
   ColumnDeclaration codec (children 1)
    DataType String
   ColumnDeclaration content (children 1)
    DataType String
   ColumnDeclaration rdate (children 2)
    DataType Date
    Literal \'2018-02-03\'
   ColumnDeclaration track_id (children 2)
    DataType String
    Function concat (children 1)
     ExpressionList (children 2)
      Function concat (children 1)
       ExpressionList (children 2)
        Function concat (children 1)
         ExpressionList (children 2)
          Function toString (children 1)
           ExpressionList (children 1)
            Identifier track
          Literal \'-\'
        Identifier codec
      Identifier content
 Storage definition (children 1)
  Function MergeTree (children 1)
   ExpressionList (children 3)
    Identifier rdate
    Function tuple (children 1)
     ExpressionList (children 2)
      Identifier id
      Identifier track_id
    Literal UInt64_8192
