CreateQuery t (children 3)
 Identifier t
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration x (children 1)
    DataType UInt64
 Storage definition (children 3)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier x
    Function intHash64 (children 1)
     ExpressionList (children 1)
      Identifier x
  Function intHash64 (children 1)
   ExpressionList (children 1)
    Identifier x