Mercurial > hg > nginx-site
diff xml/en/docs/http/ngx_http_map_module.xml @ 714:ec33576efaa5
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 |
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--- a/xml/en/docs/http/ngx_http_map_module.xml +++ b/xml/en/docs/http/ngx_http_map_module.xml @@ -69,6 +69,14 @@ specified in the first parameter. </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>