CreateQuery xy (children 3)
 Identifier xy
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType int
   ColumnDeclaration y (children 1)
    DataType int
 Storage definition (children 4)
  Function MergeTree
  Function modulo (children 1)
   ExpressionList (children 2)
    Function intHash64 (children 1)
     ExpressionList (children 1)
      Identifier x
    Literal UInt64_2
  Identifier y
  Set