Move drop_site_statistics to be a post deployment migration

As post deployment migration we don't need to make it a migration that
requires downtime

1 files changed, 22 insertions, 0 deletions

diff --git a/db/post_migrate/20181123042307_drop_site_statistics.rb b/db/post_migrate/20181123042307_drop_site_statistics.rb
new file mode 100644
index 00000000000..8986374ef65
--- /dev/null
+++ b/db/post_migrate/20181123042307_drop_site_statistics.rb
@@ -0,0 +1,22 @@
+# frozen_string_literal: true
+
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class DropSiteStatistics < ActiveRecord::Migration[5.0]
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def up
+    drop_table :site_statistics
+  end
+
+  def down
+    create_table :site_statistics do |t|
+      t.integer :repositories_count, default: 0, null: false
+    end
+
+    execute('INSERT INTO site_statistics (id) VALUES(1)')
+  end
+end