optimization : instead of reading each $conf['calendar_datefield'] for

matching YEAR() and MONTH(), use of SQL statement BETWEEN ... AND ... on the
date field + new index image_i5 on date_creation (default date field for
calendar)


git-svn-id: http://piwigo.org/svn/trunk@612 68402e56-0260-453c-a942-63ccdbb3a9ee

install/phpwebgallery_structure.sql

@@ -145,7 +145,8 @@ CREATE TABLE phpwebgallery_images (
   KEY images_i2 (date_available),
   KEY images_i1 (storage_category_id),
   KEY images_i3 (average_rate),
-  KEY images_i4 (hit)
+  KEY images_i4 (hit),
+  KEY images_i5 (date_creation)
 ) TYPE=MyISAM;
 
 --