BUG#19502: Enable/Disable index routines not working for partitioned handlers

Implemented enable/disable index routines for partition handler

mysql-test/r/partition.result

@@ -886,4 +886,8 @@ s1
 2
 3
 drop table t1;
+CREATE TABLE t1 (a int, index(a)) PARTITION BY KEY(a);
+ALTER TABLE t1 DISABLE KEYS;
+ALTER TABLE t1 ENABLE KEYS;
+DROP TABLE t1;
 End of 5.1 tests

mysql-test/t/partition.test

@@ -1009,4 +1009,11 @@ select auto_increment from information_schema.tables where table_name='t1';
 select * from t1;
 drop table t1;
 
+#
+# BUG 19502: ENABLE/DISABLE Keys don't work for partitioned tables
+#
+CREATE TABLE t1 (a int, index(a)) PARTITION BY KEY(a);
+ALTER TABLE t1 DISABLE KEYS;
+ALTER TABLE t1 ENABLE KEYS;
+DROP TABLE t1;
 --echo End of 5.1 tests

sql/ha_partition.cc

@@ -5318,6 +5318,82 @@ void ha_partition::init_table_handle_for_HANDLER()
 }
 
 
+/****************************************************************************
+                MODULE enable/disable indexes
+****************************************************************************/
+
+/*
+  Disable indexes for a while
+  SYNOPSIS
+    disable_indexes()
+    mode                      Mode
+  RETURN VALUES
+    0                         Success
+    != 0                      Error
+*/
+
+int ha_partition::disable_indexes(uint mode)
+{
+  handler **file;
+  int error= 0;
+
+  for (file= m_file; *file; file++)
+  {
+    if ((error= (*file)->disable_indexes(mode)))
+      break;
+  }
+  return error;
+}
+
+
+/*
+  Enable indexes again
+  SYNOPSIS
+    enable_indexes()
+    mode                      Mode
+  RETURN VALUES
+    0                         Success
+    != 0                      Error
+*/
+
+int ha_partition::enable_indexes(uint mode)
+{
+  handler **file;
+  int error= 0;
+
+  for (file= m_file; *file; file++)
+  {
+    if ((error= (*file)->enable_indexes(mode)))
+      break;
+  }
+  return error;
+}
+
+
+/*
+  Check if indexes are disabled
+  SYNOPSIS
+    indexes_are_disabled()
+
+  RETURN VALUES
+    0                      Indexes are enabled
+    != 0                   Indexes are disabled
+*/
+
+int ha_partition::indexes_are_disabled(void)
+{
+  handler **file;
+  int error= 0;
+
+  for (file= m_file; *file; file++)
+  {
+    if ((error= (*file)->indexes_are_disabled()))
+      break;
+  }
+  return error;
+}
+
+
 /****************************************************************************
                 MODULE Partition Share
 ****************************************************************************/

sql/ha_partition.h

@@ -938,17 +938,18 @@ class ha_partition :public handler
     virtual uint checksum() const;
     virtual bool is_crashed() const;
     virtual bool auto_repair() const;
+  */
 
+  /*
     -------------------------------------------------------------------------
     MODULE enable/disable indexes
     -------------------------------------------------------------------------
-    Enable/Disable Indexes are not supported currently (Heap, MyISAM)
-    This means that the following methods are not implemented:
+    Enable/Disable Indexes are only supported by HEAP and MyISAM.
     -------------------------------------------------------------------------
+  */
     virtual int disable_indexes(uint mode);
     virtual int enable_indexes(uint mode);
     virtual int indexes_are_disabled(void);
-  */
 
   /*
     -------------------------------------------------------------------------