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-rw-r--r--activerecord/lib/active_record/result.rb12
1 files changed, 9 insertions, 3 deletions
diff --git a/activerecord/lib/active_record/result.rb b/activerecord/lib/active_record/result.rb
index 9ceab2eabc..b8d2cd2866 100644
--- a/activerecord/lib/active_record/result.rb
+++ b/activerecord/lib/active_record/result.rb
@@ -26,9 +26,15 @@ module ActiveRecord
private
def hash_rows
- @hash_rows ||= @rows.map { |row|
- Hash[@columns.zip(row)]
- }
+ @hash_rows ||=
+ begin
+ # We freeze the strings to prevent them getting duped when
+ # used as keys in ActiveRecord::Model's @attributes hash
+ columns = @columns.map { |c| c.dup.freeze }
+ @rows.map { |row|
+ Hash[columns.zip(row)]
+ }
+ end
end
end
end