Update init.sql

plugins/webstats/conf/init.sql

@@ -31,6 +31,7 @@ CREATE INDEX method_idx ON web_logs (`method`);
 CREATE INDEX status_code_idx ON web_logs (`status_code`);
 CREATE INDEX request_time_idx ON web_logs (`request_time`);
 CREATE INDEX is_spider_idx ON web_logs (`is_spider`);
+CREATE INDEX body_length_idx ON web_logs (`body_length`);
 CREATE INDEX all_union_idx ON web_logs (`time`,`ip`,`method`,`status_code`,`request_time`,`is_spider`);