1 files changed, 15 insertions, 0 deletions
diff --git a/db/migrate/20210929031049_add_unique_index_phone_on_user_details.rb b/db/migrate/20210929031049_add_unique_index_phone_on_user_details.rb
new file mode 100644
index 00000000000..e0cf7aa8a44
--- /dev/null
+++ b/db/migrate/20210929031049_add_unique_index_phone_on_user_details.rb
@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class AddUniqueIndexPhoneOnUserDetails < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  INDEX_NAME = 'index_user_details_on_phone'
+
+  def up
+    add_concurrent_index :user_details, :phone, unique: true, where: 'phone IS NOT NULL', name: INDEX_NAME, comment: 'JiHu-specific index'
+  end
+
+  def down
+    remove_concurrent_index_by_name :user_details, INDEX_NAME
+  end
+end