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Update FAQ.

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Bruce Momjian
2001-01-22 16:35:35 +00:00
parent 7e0919136a
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doc/src/FAQ/FAQ.html
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@ -1224,8 +1224,8 @@ Lobby your company to join W3C, see http://www.w3.org/Consortium
<H4><A name="4.24">4.24</A>) How do I do an <I>outer</I> join?<BR>
</H4>
<P>PostgreSQL 7.1 and later supports outer joins. Here are two
examples:</P>
<P>PostgreSQL 7.1 and later supports outer joins using the SQL
standard syntax. Here are two examples:</P>
<PRE>
SELECT *
FROM t1 LEFT OUTER JOIN t2 ON (t1.col = t2.col);
@ -1235,9 +1235,10 @@ or
SELECT *
FROM t1 LEFT OUTER JOIN t2 USING (col);
</PRE>
These identical queries join t1.col to t2.col, and return any
unjoined rows in t1. A <SMALL>RIGHT</SMALL> join would return
unjoined rows of table t2. A <SMALL>FULL</SMALL> join would return
These identical queries join t1.col to t2.col, and also return any
unjoined rows in t1 (those with no match in t2). A
<SMALL>RIGHT</SMALL> join would add unjoined rows of t2. A
<SMALL>FULL</SMALL> join would return the matched rows plus all
unjoined rows from t1 and t2. The word <SMALL>OUTER</SMALL> is
optional and is assumed in <SMALL>LEFT</SMALL>,
<SMALL>RIGHT</SMALL>, and <SMALL>FULL</SMALL> joins. Ordinary joins