Merge pull request #36645 from Shopify/arel-dispatch-cache

Share the Arel dispatch cache between connections
rails · Jul 10, 2019 · 2fa21fe · 2fa21fe
2 parents 15748f6 + 50bb22d
commit 2fa21fe
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/activerecord/lib/arel/visitors/visitor.rb b/activerecord/lib/arel/visitors/visitor.rb
@@ -15,7 +15,7 @@ def accept(object, collector = nil)
         attr_reader :dispatch
 
         def self.dispatch_cache
-          Hash.new do |hash, klass|
+          @dispatch_cache ||= Hash.new do |hash, klass|
             hash[klass] = "visit_#{(klass.name || '').gsub('::', '_')}"
           end
         end