CreateQuery t_02784 (children 3)
 Identifier t_02784
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration c1 (children 1)
    DataType UInt64
   ColumnDeclaration c2 (children 1)
    DataType UInt64
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Identifier c1
  Set
