Do not try to delete an internal relation if we just deleted an InnoDB one

pmd_relation_upd.php

@@ -18,15 +18,13 @@ include_once 'pmd_save_pos.php';
 list($DB1,$T1) = explode(".",$T1);
 list($DB2,$T2) = explode(".",$T2);
 
-//++++++++++++++++++++++++++++++++++++++++++++++++++++ InnoDB ++++++++++++++++++++++++++++++++++++++++++++++++++++
-
-
 $tables = PMA_DBI_get_tables_full($db, $T1);
 $type_T1 = strtoupper($tables[$T1]['ENGINE']);
 $tables = PMA_DBI_get_tables_full($db, $T2);
 $type_T2 = strtoupper($tables[$T2]['ENGINE']);
 
 if ($type_T1 == 'INNODB' && $type_T2 == 'INNODB') {
+    // InnoDB
     $existrel_innodb = PMA_getForeigners($DB2, $T2, '', 'innodb');
 
     if (PMA_MYSQL_INT_VERSION >= 40013 && isset($existrel_innodb[$F2]['constraint'])) {
@@ -35,11 +33,9 @@ if ($type_T1 == 'INNODB' && $type_T2 == 'INNODB') {
                   . PMA_backquote($existrel_innodb[$F2]['constraint']);
         $upd_rs     = PMA_DBI_query($upd_query);
     }
-}
-//---------------------------------------------------------------------------------------------------
-
-
-PMA_query_as_cu('DELETE FROM '.$cfg['Server']['relation'].' WHERE '
+} else {
+    // internal relations
+    PMA_query_as_cu('DELETE FROM '.$cfg['Server']['relation'].' WHERE '
               . 'master_db = \'' . PMA_sqlAddslashes($DB2) . '\''
               . 'AND master_table = \'' . PMA_sqlAddslashes($T2) . '\''
               . 'AND master_field = \'' . PMA_sqlAddslashes($F2) . '\''
@@ -47,7 +43,7 @@ PMA_query_as_cu('DELETE FROM '.$cfg['Server']['relation'].' WHERE '
               . 'AND foreign_table = \'' . PMA_sqlAddslashes($T1) . '\''
               . 'AND foreign_field = \'' . PMA_sqlAddslashes($F1) . '\''
               , FALSE, PMA_DBI_QUERY_STORE);
-
+}
 PMD_return(1, 'strRelationDeleted');
 
 function PMD_return($b,$ret)
@@ -58,4 +54,3 @@ function PMD_return($b,$ret)
   die('<root act="relation_upd" return="'.$ret.'" b="'.$b.'" K="'.$K.'"></root>');
 }
 ?>
-