在oracle_2.1.8_to_2.2.0.sql中，第一段sql
ALTER TABLE jforum_topics ALTER COLUMN topic_views SET DEFAULT 0;
不正确，应该是
ALTER TABLE jforum_topics modify (topic_views DEFAULT 0);

现在都到2.3.x了，不知道还有没有用，呵呵

Thank you for your report.
This issue has already been reported as issue 14 before and also has been fixed in revision r167.
It will be included in the JForum2 release 2.3.4.

哦，了解了
那以后发现问题可以在google上给你开启一个新issue就行了，是吧？

再请教一下，我觉得你是JForum团队的人，但现在JForum3似乎停滞了（https://github.com/rafaelsteil/jforum3/issues/12）
但如果以后jforum3正式发布了，从你维护的JForum2.3.x版，升级到JForum3会有问题么？
（我只看rafaelsteil说过会从2.1.9平滑升级到3.0）

If you found a bug, please check if this bug have already been reported before you create a new issue on the GoogleCode project site.

JForum3 is still under development by the JForum team. The progress may be a little bit slow than what you expected. And I don't have any idea when it will be released. So if JForum3 is released someday, you need to use the new page layout(So, the only thing of JForum2 left is the database content).

What to do to upgrade to JForum3:
1.You'll need to do some database schema upgrade.
See this mysql script for a preview.

2.You'll need to do the look-and-feel HTML page UI customization again.

3.You'll need to check all your old data working correctly with the new software.