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diff xml/en/docs/http/ngx_http_map_module.xml @ 714:ec33576efaa5

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Added note about minimal impact of declaring multiple variables (geo, map).
author Vladimir Homutov <vl@nginx.com>
date Tue, 09 Oct 2012 12:39:31 +0000
parents 77a3314c74a7
children 81ec181c084e
line wrap: on
line diff
--- a/xml/en/docs/http/ngx_http_map_module.xml	Tue Oct 09 12:30:15 2012 +0000
+++ b/xml/en/docs/http/ngx_http_map_module.xml	Tue Oct 09 12:39:31 2012 +0000
@@ -69,6 +69,14 @@
 </para>
 
 <para>
+<note>
+Since variables are evaluated only when used, the mere existence
+of even a large number of declared “<literal>map</literal>” variables
+does not incur any extra costs for request processing.
+</note>
+</para>
+
+<para>
 Parameters inside the <literal>map</literal> block specify a mapping
 between source and resulting values.
 </para>