diff options
Diffstat (limited to 'activerecord/lib/active_record/table_metadata.rb')
-rw-r--r-- | activerecord/lib/active_record/table_metadata.rb | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/table_metadata.rb b/activerecord/lib/active_record/table_metadata.rb index 41f1c55c3c..f9bb1cf5e0 100644 --- a/activerecord/lib/active_record/table_metadata.rb +++ b/activerecord/lib/active_record/table_metadata.rb @@ -10,13 +10,15 @@ module ActiveRecord end def resolve_column_aliases(hash) - hash = hash.dup - hash.keys.grep(Symbol) do |key| - if klass.attribute_alias? key - hash[klass.attribute_alias(key)] = hash.delete key + # This method is a hot spot, so for now, use Hash[] to dup the hash. + # https://bugs.ruby-lang.org/issues/7166 + new_hash = Hash[hash] + hash.each do |key, _| + if (key.is_a?(Symbol)) && klass.attribute_alias?(key) + new_hash[klass.attribute_alias(key)] = new_hash.delete(key) end end - hash + new_hash end def arel_attribute(column_name) |