diff options
| -rw-r--r-- | activerecord/lib/active_record/relation/query_methods.rb | 2 | ||||
| -rw-r--r-- | activerecord/test/cases/relation_test.rb | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 87a53966e4..6a181882ae 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -952,7 +952,7 @@ module ActiveRecord def optimizer_hints!(*args) # :nodoc: args.flatten! - self.optimizer_hints_values += args + self.optimizer_hints_values |= args self end diff --git a/activerecord/test/cases/relation_test.rb b/activerecord/test/cases/relation_test.rb index e0743de94b..e74fb1a098 100644 --- a/activerecord/test/cases/relation_test.rb +++ b/activerecord/test/cases/relation_test.rb @@ -363,6 +363,13 @@ module ActiveRecord assert_match %r{/\*\+ BADHINT \*/}, post_with_hint.to_sql end + def test_does_not_duplicate_optimizer_hints_on_merge + escaped_table = Post.connection.quote_table_name("posts") + expected = "SELECT /*+ OMGHINT */ #{escaped_table}.* FROM #{escaped_table}" + query = Post.optimizer_hints("OMGHINT").merge(Post.optimizer_hints("OMGHINT")).to_sql + assert_equal expected, query + end + class EnsureRoundTripTypeCasting < ActiveRecord::Type::Value def type :string |