CreateQuery delta_codec_for_alter (children 3)
 Identifier delta_codec_for_alter
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration date (children 1)
    DataType Date
   ColumnDeclaration x (children 2)
    DataType UInt32
    Function CODEC (children 1)
     ExpressionList (children 1)
      Function Delta
   ColumnDeclaration s (children 1)
    DataType FixedString (children 1)
     ExpressionList (children 1)
      Literal UInt64_128
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList
