diff options
-rw-r--r-- | activerecord/CHANGELOG.md | 5 | ||||
-rw-r--r-- | activerecord/lib/active_record/explain_subscriber.rb | 3 | ||||
-rw-r--r-- | activerecord/test/cases/explain_subscriber_test.rb | 7 |
3 files changed, 14 insertions, 1 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index 71dc960309..a4ba956477 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,5 +1,10 @@ ## Rails 4.0.0 (unreleased) ## +* Explain only normal CRUD sql (select / update / insert / delete). + Fix problem that explains unexplainable sql. Closes #7544 #6458. + + *kennyj* + * Fix `find_in_batches` when primary_key is set other than id. You can now use this method with the primary key which is not integer-based. diff --git a/activerecord/lib/active_record/explain_subscriber.rb b/activerecord/lib/active_record/explain_subscriber.rb index d5ba343b4c..0f927496fb 100644 --- a/activerecord/lib/active_record/explain_subscriber.rb +++ b/activerecord/lib/active_record/explain_subscriber.rb @@ -18,8 +18,9 @@ module ActiveRecord # 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) + EXPLAINED_SQLS = /\A\s*(select|update|delete|insert)/i def ignore_payload?(payload) - payload[:exception] || IGNORED_PAYLOADS.include?(payload[:name]) + payload[:exception] || IGNORED_PAYLOADS.include?(payload[:name]) || payload[:sql] !~ EXPLAINED_SQLS end ActiveSupport::Notifications.subscribe("sql.active_record", new) diff --git a/activerecord/test/cases/explain_subscriber_test.rb b/activerecord/test/cases/explain_subscriber_test.rb index 91e1df91cd..b425967678 100644 --- a/activerecord/test/cases/explain_subscriber_test.rb +++ b/activerecord/test/cases/explain_subscriber_test.rb @@ -38,6 +38,13 @@ if ActiveRecord::Base.connection.supports_explain? end end + def test_collects_nothing_if_unexplained_sqls + with_queries([]) do |queries| + SUBSCRIBER.finish(nil, nil, :name => 'SQL', :sql => 'SHOW max_identifier_length') + assert queries.empty? + end + end + def with_queries(queries) Thread.current[:available_queries_for_explain] = queries yield queries |