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-rw-r--r--activerecord/CHANGELOG.md4
-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb8
2 files changed, 12 insertions, 0 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 104e8e3e40..126464f81f 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -1,3 +1,7 @@
+* Implement rename_index natively for MySQL > 5.7.
+
+ *Cody Cutrer*
+
* Fix bug when validating the uniqueness of an aliased attribute.
Fixes #12402.
diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
index dcbc3466b2..3aa4604912 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -487,6 +487,14 @@ module ActiveRecord
rename_table_indexes(table_name, new_name)
end
+ def rename_index(table_name, old_name, new_name)
+ if version[0] >= 5 && version[1] >= 7
+ execute "ALTER TABLE #{quote_table_name(table_name)} RENAME INDEX #{quote_table_name(old_name)} TO #{quote_table_name(new_name)}"
+ else
+ super
+ end
+ end
+
def change_column_default(table_name, column_name, default)
column = column_for(table_name, column_name)
change_column table_name, column_name, column.sql_type, :default => default