doc: Fix figures in example description

oversight in 244c8b466a743d1ec18a7d841bf42669699b3b56

Reported-by: Blaz Merela <blaz@merela.org>

diff --git a/doc/src/sgml/perform.sgml b/doc/src/sgml/perform.sgml
index a51fd1c7dcd7166d869adb137bdb2667331bb631..c32e95a15420b5aae15616d64d3453ca3ad8849f 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 <literal>t2</literal>.)  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.
    </para>