diff options
| -rw-r--r-- | activerecord/lib/active_record/table_metadata.rb | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/table_metadata.rb b/activerecord/lib/active_record/table_metadata.rb index 41f1c55c3c..702bf8a885 100644 --- a/activerecord/lib/active_record/table_metadata.rb +++ b/activerecord/lib/active_record/table_metadata.rb @@ -10,7 +10,9 @@ module ActiveRecord end def resolve_column_aliases(hash) - hash = hash.dup + # This method is a hot spot, so for now, use Hash[] to dup the hash. + # https://bugs.ruby-lang.org/issues/7166 + hash = Hash[hash] hash.keys.grep(Symbol) do |key| if klass.attribute_alias? key hash[klass.attribute_alias(key)] = hash.delete key |