PostgreSQL Timestamps always map to `:datetime`.

The PG Adapter should use `:datetime` consistently instead of mapping
mispellings to `:timestamp`.

See #14513

1 files changed, 1 insertions, 6 deletions

diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
index 9e898015a6..540b3694b5 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb
@@ -209,12 +209,7 @@ This is not reliable and will be removed in the future.
         class Timestamp < Type
           def type; :timestamp; end
           def simplified_type(sql_type)
-            case sql_type
-            when /^timestamp with(?:out)? time zone$/
-              :datetime
-            else
-              :timestamp
-            end
+            :datetime
           end
 
           def type_cast(value)