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authorRyuta Kamizono <kamipo@gmail.com>2019-03-13 09:29:00 +0900
committerRyuta Kamizono <kamipo@gmail.com>2019-03-16 18:44:55 +0900
commit97347d8c409f14b682dd9ec52ded3c869d0ba479 (patch)
tree7baf7114da2ed0e305663085778267b6a3f06cb7 /activerecord/test/cases/invertible_migration_test.rb
parent85984e50311b7138504abe1be9bbe99f96dde8ef (diff)
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Support Optimizer Hints
We as Arm Treasure Data are using Optimizer Hints with a monkey patch (https://gist.github.com/kamipo/4c8539f0ce4acf85075cf5a6b0d9712e), especially in order to use `MAX_EXECUTION_TIME` (refer #31129). Example: ```ruby class Job < ApplicationRecord default_scope { optimizer_hints("MAX_EXECUTION_TIME(50000) NO_INDEX_MERGE(jobs)") } end ``` Optimizer Hints is supported not only for MySQL but also for most databases (PostgreSQL on RDS, Oracle, SQL Server, etc), it is really helpful to turn heavy queries for large scale applications.
Diffstat (limited to 'activerecord/test/cases/invertible_migration_test.rb')
-rw-r--r--activerecord/test/cases/invertible_migration_test.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/test/cases/invertible_migration_test.rb b/activerecord/test/cases/invertible_migration_test.rb
index 6cf17ac15d..d68cc40107 100644
--- a/activerecord/test/cases/invertible_migration_test.rb
+++ b/activerecord/test/cases/invertible_migration_test.rb
@@ -308,6 +308,8 @@ module ActiveRecord
migration2 = DisableExtension1.new
migration3 = DisableExtension2.new
+ assert_equal true, Horse.connection.extension_available?("hstore")
+
migration1.migrate(:up)
migration2.migrate(:up)
assert_equal true, Horse.connection.extension_enabled?("hstore")