InsertQuery   (children 4)
 Identifier test
 Identifier hits_1m
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 4)
    ExpressionList (children 1)
     Asterisk
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier test.hits
    Literal UInt64_1000000
    Set
 Set