CreateQuery mmm (children 3)
 Identifier mmm
 Storage definition (children 2)
  Function MergeTree
  Identifier number
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier number
     Function modulo (alias a) (children 1)
      ExpressionList (children 2)
       Function rand (children 1)
        ExpressionList
       Literal UInt64_10
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_1000
