Ticket #30170: export-start-end-date.patch

export.php

@@ -76 +76 @@
                 if ( $args['author'] )
                         $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_author = %d", $args['author'] );
 
+        // Swap start and end dates if, and only if, start date is more recent than end date
+        if ( $args['start_date'] && $args['end_date'] && $args['start_date'] > $args['end_date'] ) {
+            $swap = $args['start_date'];
+            $args['start_date'] = $args['end_date'];
+            $args['end_date'] = $swap;
+        }
+
                 if ( $args['start_date'] )
                         $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date >= %s", date( 'Y-m-d', strtotime($args['start_date']) ) );