Commit 680ebf44 authored by Greg Stark's avatar Greg Stark

Add index on namespaces lower(name) for UsersController#exists

parent 82e31ee4
---
title: Add index on namespaces lower(name) for UsersController#exists
merge_request:
author:
type: performance
class AddIndexOnNamespacesLowerName < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
INDEX_NAME = 'index_on_namespaces_lower_name'
disable_ddl_transaction!
def up
return unless Gitlab::Database.postgresql?
disable_statement_timeout
if Gitlab::Database.version.to_f >= 9.5
# Allow us to hot-patch the index manually ahead of the migration
execute "CREATE INDEX CONCURRENTLY IF NOT EXISTS #{INDEX_NAME} ON namespaces (lower(name));"
else
execute "CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON namespaces (lower(name));"
end
end
def down
return unless Gitlab::Database.postgresql?
disable_statement_timeout
if Gitlab::Database.version.to_f >= 9.2
execute "DROP INDEX CONCURRENTLY IF EXISTS #{INDEX_NAME};"
else
execute "DROP INDEX IF EXISTS #{INDEX_NAME};"
end
end
end
......@@ -11,7 +11,7 @@
#
# It's strongly recommended that you check this file into your version control system.
ActiveRecord::Schema.define(version: 20171219121201) do
ActiveRecord::Schema.define(version: 20171220191323) do
# These are extensions that must be enabled in order to support this database
enable_extension "plpgsql"
......
......@@ -6,6 +6,7 @@ require Rails.root.join('db/migrate/20161212142807_add_lower_path_index_to_route
require Rails.root.join('db/migrate/20170317203554_index_routes_path_for_like')
require Rails.root.join('db/migrate/20170724214302_add_lower_path_index_to_redirect_routes')
require Rails.root.join('db/migrate/20170503185032_index_redirect_routes_path_for_like')
require Rails.root.join('db/migrate/20171220191323_add_index_on_namespaces_lower_name.rb')
desc 'GitLab | Sets up PostgreSQL'
task setup_postgresql: :environment do
......@@ -15,4 +16,5 @@ task setup_postgresql: :environment do
IndexRoutesPathForLike.new.up
AddLowerPathIndexToRedirectRoutes.new.up
IndexRedirectRoutesPathForLike.new.up
AddIndexOnNamespacesLowerName.new.up
end
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