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-rw-r--r--activerecord/lib/active_record/explain_subscriber.rb5
1 files changed, 4 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/explain_subscriber.rb b/activerecord/lib/active_record/explain_subscriber.rb
index fc76410499..1f8c4fc203 100644
--- a/activerecord/lib/active_record/explain_subscriber.rb
+++ b/activerecord/lib/active_record/explain_subscriber.rb
@@ -11,7 +11,10 @@ module ActiveRecord
# SCHEMA queries cannot be EXPLAINed, also we do not want to run EXPLAIN on
# our own EXPLAINs now matter how loopingly beautiful that would be.
- IGNORED_PAYLOADS = %w(SCHEMA EXPLAIN)
+ #
+ # On the other hand, we want to monitor the performance of our real database
+ # queries, not the performance of the access to the query cache.
+ IGNORED_PAYLOADS = %w(SCHEMA EXPLAIN CACHE)
def ignore_payload?(payload)
payload[:exception] || IGNORED_PAYLOADS.include?(payload[:name])
end