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-rw-r--r--activerecord/lib/arel/visitors/depth_first.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/arel/visitors/depth_first.rb b/activerecord/lib/arel/visitors/depth_first.rb
index 92d309453c..892d670c79 100644
--- a/activerecord/lib/arel/visitors/depth_first.rb
+++ b/activerecord/lib/arel/visitors/depth_first.rb
@@ -35,6 +35,7 @@ module Arel # :nodoc: all
alias :visit_Arel_Nodes_Ascending :unary
alias :visit_Arel_Nodes_Descending :unary
alias :visit_Arel_Nodes_UnqualifiedColumn :unary
+ alias :visit_Arel_Nodes_OptimizerHints :unary
def function(o)
visit o.expressions