CreateQuery delta_codec_string (children 3)
 Identifier delta_codec_string
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration id (children 2)
    DataType Float64
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function Delta
      Function LZ4
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
  Set
