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-rw-r--r--activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb
index be6fda95b4..095e027f94 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb
@@ -85,6 +85,8 @@ module ActiveRecord
end
end
+ # If arel is locked this is a SELECT ... FOR UPDATE or somesuch. Such
+ # queries should not be cached.
def locked?(arel)
arel.respond_to?(:locked) && arel.locked
end