2 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
index d7b5bf8e31..e2b3773a99 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb
@@ -30,7 +30,7 @@ module ActiveRecord
             if value.acts_like?(:date) || value.acts_like?(:time)
               "'#{quoted_date(value)}'"
             else
-              "'#{quote_string(value.to_yaml)}'"
+              "'#{quote_string(value.to_s)}'"
             end
         end
       end
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index ffc3847a31..7dee68502f 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -327,6 +327,8 @@ module ActiveRecord
       #
       # Note: SQLite doesn't support index length
       def add_index(table_name, column_name, options = {})
+        options[:name] = options[:name].to_s if options.key?(:name)
+
         column_names = Array.wrap(column_name)
         index_name   = index_name(table_name, :column => column_names)