CreateQuery agg (children 3)
 Identifier agg
 Storage definition (children 2)
  Function AggregatingMergeTree
  Function tuple (children 1)
   ExpressionList
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 2)
     Identifier t
     Function sumIF (children 1)
      ExpressionList (children 2)
       Identifier n
       Literal UInt64_0
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier data
    ExpressionList (children 1)
     Identifier t
