doc: Fix figures in example description

oversight in 244c8b466a743d1ec18a7d841bf42669699b3b56

Reported-by: Blaz Merela 

diff --git a/doc/src/sgml/perform.sgml b/doc/src/sgml/perform.sgml
index a99abdda0c8bb76b78d1712e17973d2ee05f26af..9a1c21a54254b047bb0d4f4f59f437e7c537e5d9 100644 (file)
--- a/doc/src/sgml/perform.sgml
+++ b/doc/src/sgml/perform.sgml
@@ -388,7 +388,7 @@ WHERE t1.unique1 < 10 AND t1.unique2 = t2.unique2;
     as a result of caching that's expected to occur during the repeated
     index scans on t2.)  The
     costs of the loop node are then set on the basis of the cost of the outer
-    scan, plus one repetition of the inner scan for each outer row (10 * 7.87,
+    scan, plus one repetition of the inner scan for each outer row (10 * 7.91,
     here), plus a little CPU time for join processing.