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 d3b47bc5a576dc9714e256f67b940752c6ea366e..e7f17b9fa9dbdd057276e40fe68ded185454a994 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.