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 cf085fe0cc3c2e79b1667a570e5749596a077c62..5e6de7d9bfd6f68f86893891c1a113e881ee656d 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.