Revert "Performance breakthrough"

This reverts commit c2916856541ed82b2f11b5f3ff29b1e4f5cd6b3e.

diff --git a/include/functions.php b/include/functions.php
index a57c0947809adff86ed265eccdf106074605fe3b..22179e1a4c74f59598fba6b753bef8573cc2ad7d 100644 (file)
--- a/include/functions.php
+++ b/include/functions.php
@@ -320,7 +320,8 @@
 
                // purge orphaned posts in main content table
                $result = db_query("DELETE FROM ttrss_entries WHERE
-                       id NOT IN (SELECT ref_id FROM ttrss_user_entries WHERE ref_id IS NOT NULL)");
+                       (SELECT COUNT(int_id) FROM ttrss_user_entries WHERE ref_id = id) = 0");
+
                if ($do_output) {
                        $rows = db_affected_rows($result);
                        _debug("Purged $rows orphaned posts.");