1 files changed, 65 insertions, 0 deletions
diff --git a/sql/sql_partition.cc b/sql/sql_partition.cc
index a0fd64c72ad..802e62585d4 100644
--- a/sql/sql_partition.cc
+++ b/sql/sql_partition.cc
@@ -4788,6 +4788,69 @@ bool compare_partition_options(HA_CREATE_INFO *table_create_info,
 }
 
 
+/**
+  Check if the ALTER command tries to change DATA DIRECTORY
+  or INDEX DIRECTORY for its partitions and warn if so.
+  @param thd  THD
+  @param part_elem partition_element to check
+ */
+static void warn_if_datadir_altered(THD *thd,
+    const partition_element *part_elem)
+{
+  DBUG_ASSERT(part_elem);
+
+  if (part_elem->engine_type &&
+      part_elem->engine_type->db_type != DB_TYPE_INNODB)
+    return;
+
+  if (part_elem->data_file_name)
+  {
+    push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
+        WARN_INNODB_PARTITION_OPTION_IGNORED,
+        ER(WARN_INNODB_PARTITION_OPTION_IGNORED),
+        "DATA DIRECTORY");
+  }
+  if (part_elem->index_file_name)
+  {
+    push_warning_printf(thd, Sql_condition::WARN_LEVEL_WARN,
+        WARN_INNODB_PARTITION_OPTION_IGNORED,
+        ER(WARN_INNODB_PARTITION_OPTION_IGNORED),
+        "INDEX DIRECTORY");
+  }
+}
+
+
+/**
+  Currently changing DATA DIRECTORY and INDEX DIRECTORY for InnoDB partitions is
+  not possible. This function checks it and warns on that case.
+  @param thd THD
+  @param tab_part_info old partition info
+  @param alt_part_info new partition info
+ */
+static void check_datadir_altered_for_innodb(THD *thd,
+    partition_info *tab_part_info,
+    partition_info *alt_part_info)
+{
+  if (tab_part_info->default_engine_type->db_type != DB_TYPE_INNODB)
+    return;
+
+  for (List_iterator_fast<partition_element> it(alt_part_info->partitions);
+       partition_element *part_elem= it++;)
+  {
+    if (alt_part_info->is_sub_partitioned())
+    {
+      for (List_iterator_fast<partition_element> it2(part_elem->subpartitions);
+           const partition_element *sub_part_elem= it2++;)
+      {
+        warn_if_datadir_altered(thd, sub_part_elem);
+      }
+    }
+    else
+      warn_if_datadir_altered(thd, part_elem);
+  }
+}
+
+
 /*
   Prepare for ALTER TABLE of partition structure
 
@@ -5623,6 +5686,8 @@ state of p1.
       {
         goto err;
       }
+      check_datadir_altered_for_innodb(thd, tab_part_info, alt_part_info);
+
 /*
 Online handling:
 REORGANIZE PARTITION: