Thanks for the quick information. Another question is, if createunique is not recommended, what is the recommended way to create primary keys? In fact, I also got the crashes when doing inner join.
----- 原始邮件 ----- 发件人：Eric Iverson <[email protected]> 收件人：Programming forum <[email protected]> 主题：Re: [Jprogramming] jd crashs when outer join with createunique 日期：2015年02月24日 01点26分 The crash is caused by a bug in a reference from a table to a table with createunique rather than createhash. The fix is non-trivial and won't be made for the next release. The next release will have a test so there is an error message rather than a crash. If there is no strong reason for the createunigue, as a workaround, just don't use it. If you need createunique, then using b2,b2<ab will work and give the desired result. In some cases createunique introduces more complexity and performance problems than are warranted by the benefits. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
