Added "const" to new data for handler::update_row()

This was done to make it clear that a update_row() should not change the
row.
This was not done for handler::write_row() as this function still needs
to update auto_increment values in the row. This should at some point
be moved to handler::ha_write_row() after which write_row can also have
const arguments.

2 files changed, 2 insertions, 2 deletions

diff --git a/storage/federatedx/ha_federatedx.cc b/storage/federatedx/ha_federatedx.cc
index e3506e1a4df..a7b1edd0086 100644
--- a/storage/federatedx/ha_federatedx.cc
+++ b/storage/federatedx/ha_federatedx.cc
@@ -2276,7 +2276,7 @@ int ha_federatedx::repair(THD* thd, HA_CHECK_OPT* check_opt)
   Called from sql_select.cc, sql_acl.cc, sql_update.cc, and sql_insert.cc.
 */
 
-int ha_federatedx::update_row(const uchar *old_data, uchar *new_data)
+int ha_federatedx::update_row(const uchar *old_data, const uchar *new_data)
 {
   /*
     This used to control how the query was built. If there was a
diff --git a/storage/federatedx/ha_federatedx.h b/storage/federatedx/ha_federatedx.h
index 2c2c6eef26b..759ddfdfe71 100644
--- a/storage/federatedx/ha_federatedx.h
+++ b/storage/federatedx/ha_federatedx.h
@@ -394,7 +394,7 @@ public:
   void start_bulk_insert(ha_rows rows, uint flags);
   int end_bulk_insert();
   int write_row(uchar *buf);
-  int update_row(const uchar *old_data, uchar *new_data);
+  int update_row(const uchar *old_data, const uchar *new_data);
   int delete_row(const uchar *buf);
   int index_init(uint keynr, bool sorted);
   ha_rows estimate_rows_upper_bound();