Replace `type_cast` case statement with delegation

All subclasses of column were now delegating `type_cast` to their
injected type object. We can remove the overriding methods, and
generalize it on the `Column` class itself. This also enabled us to
remove several column classes completely, as they no longer had any
meaningful behavior of their own.

1 files changed, 1 insertions, 2 deletions

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 852b7105d3..86eb2a38d8 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb
@@ -249,10 +249,9 @@ module ActiveRecord
         raise NotImplementedError
       end
 
-      # Overridden by the adapters to instantiate their specific Column type.
       def new_column(field, default, sql_type, null, collation, extra = "") # :nodoc:
         cast_type = lookup_cast_type(sql_type)
-        Column.new(field, default, cast_type, sql_type, null, collation, extra)
+        Column.new(field, default, cast_type, sql_type, null, collation, strict_mode?, extra)
       end
 
       # Must return the Mysql error number from the exception, if the exception has an