CreateQuery ay (children 3)
 Identifier ay
 Storage definition (children 2)
  Function AggregatingMergeTree
  Identifier i
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Literal UInt64_1 (alias i)
     Function sumSimpleState (children 1)
      ExpressionList (children 1)
       Literal UInt64_10
    ExpressionList (children 1)
     Identifier i
