-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<!-- saved from url=(0063)file://I:\Wlzhang\MyDoc\postgresql\FAQcn.files\postgres-faq.htm -->
<!-- saved from url=(0046)http://laser.zhengmai.com.cn/postgres-faq.html --><HTML><HEAD><TITLE>PostgreSQL
FAQ-ch</TITLE>
outer join £¨ÍâÁ¬½Ó£©£¿<br>
<a href="#4.24">4.24</a>)
ÈçºÎʹÓÃÉæ¼°¶à¸öÊý¾Ý¿âµÄ²éѯ£¿<br>
- <CENTER>
- </CENTER>
<a href="#4.25">4.25</a>)
ÈçºÎÈú¯Êý·µ»Ø¶àÐлò¶àÁУ¿<br>
- <CENTER>
- </CENTER>
<a href="#4.26">4.26</a>) ΪʲôÔÚ
PL/PgSQL º¯ÊýÖв»ÄÜ¿É¿¿µØ´´½¨»òɾ³ýÁÙʱ±í£¿<br>
- <CENTER>
- </CENTER>
<a href="#4.27">4.27</a>)
ÓÐÄÄЩÊý¾Ý¸´ÖÆÑ¡Ï<br>
<a href="#4.28">4.28</a>)
<p>
´ÅÅÌÎļþ¸ñʽûÓб仯µÄÉý¼¶£¬¿ÉÒÔÓà <i>pg_upgrade</i> ½Å±¾£¬¶ø²»ÐèÒª×ö dump ºÍ restor¡£·¢²¼ËµÃ÷script »áÖ¸Ã÷ <i>pg_upgrade</i>
¶Ô¸Ã´ÎÉý¼¶ÊÇ·ñ¿ÉÓá£</p>
- <P>
<HR>
<CENTER>
<H2>²Ù×÷ÎÊÌâ</H2>