Commit 42aca60d authored by Greg Stark's avatar Greg Stark

Change index on ci_builds to optimize Jobs Controller

parent 5b56cd3b
---
title: Change index on ci_builds to optimize Jobs Controller
merge_request:
author:
type: other
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class AddCiBuildsIndexForJobscontroller < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
# When a migration requires downtime you **must** uncomment the following
# constant and define a short and easy to understand explanation as to why the
# migration requires downtime.
# DOWNTIME_REASON = ''
# When using the methods "add_concurrent_index", "remove_concurrent_index" or
# "add_column_with_default" you must disable the use of transactions
# as these methods can not run in an existing transaction.
# When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
# that either of them is the _only_ method called in the migration,
# any other changes should go in a separate migration.
# This ensures that upon failure _only_ the index creation or removing fails
# and can be retried or reverted easily.
#
# To disable transactions uncomment the following line and remove these
# comments:
# disable_ddl_transaction!
disable_ddl_transaction!
def up
add_concurrent_index :ci_builds, [:project_id, :id] unless index_exists? :ci_builds, [:project_id, :id]
remove_concurrent_index :ci_builds, :project_id if index_exists? :ci_builds, :project_id
end
def down
add_concurrent_index :ci_builds, :project_id unless index_exists? :ci_builds, :project_id
remove_concurrent_index :ci_builds, [:project_id, :id] if index_exists? :ci_builds, [:project_id, :id]
end
end
......@@ -256,7 +256,7 @@ ActiveRecord::Schema.define(version: 20170928100231) do
add_index "ci_builds", ["commit_id", "status", "type"], name: "index_ci_builds_on_commit_id_and_status_and_type", using: :btree
add_index "ci_builds", ["commit_id", "type", "name", "ref"], name: "index_ci_builds_on_commit_id_and_type_and_name_and_ref", using: :btree
add_index "ci_builds", ["commit_id", "type", "ref"], name: "index_ci_builds_on_commit_id_and_type_and_ref", using: :btree
add_index "ci_builds", ["project_id"], name: "index_ci_builds_on_project_id", using: :btree
add_index "ci_builds", ["project_id", "id"], name: "index_ci_builds_on_project_id_and_id", using: :btree
add_index "ci_builds", ["protected"], name: "index_ci_builds_on_protected", using: :btree
add_index "ci_builds", ["runner_id"], name: "index_ci_builds_on_runner_id", using: :btree
add_index "ci_builds", ["stage_id"], name: "index_ci_builds_on_stage_id", using: :btree
......
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