Index redirect_routes path for LIKE

1 files changed, 29 insertions, 0 deletions

diff --git a/db/migrate/20170503185032_index_redirect_routes_path_for_like.rb b/db/migrate/20170503185032_index_redirect_routes_path_for_like.rb
new file mode 100644
index 00000000000..5b8b6c828be
--- /dev/null
+++ b/db/migrate/20170503185032_index_redirect_routes_path_for_like.rb
@@ -0,0 +1,29 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class IndexRedirectRoutesPathForLike < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  INDEX_NAME = 'index_redirect_routes_on_path_text_pattern_ops'
+
+  disable_ddl_transaction!
+
+  def up
+    return unless Gitlab::Database.postgresql?
+
+    unless index_exists?(:redirect_routes, :path, name: INDEX_NAME)
+      execute("CREATE INDEX CONCURRENTLY #{INDEX_NAME} ON redirect_routes (path varchar_pattern_ops);")
+    end
+  end
+
+  def down
+    return unless Gitlab::Database.postgresql?
+
+    if index_exists?(:redirect_routes, :path, name: INDEX_NAME)
+      execute("DROP INDEX CONCURRENTLY #{INDEX_NAME};")
+    end
+  end
+end