InsertQuery   (children 2)
 Identifier test
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Function if (alias s) (children 1)
      ExpressionList (children 3)
       Function less (children 1)
        ExpressionList (children 2)
         Identifier number
         Literal UInt64_8000
       Literal \'ok\'
       Literal \'fail\'
     Function if (children 1)
      ExpressionList (children 3)
       Function less (children 1)
        ExpressionList (children 2)
         Identifier number
         Literal UInt64_8000
       Literal \'client1\'
       Literal \'client2\'
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_20000
