1 files changed, 19 insertions, 0 deletions
diff --git a/db/migrate/20231214222351_drop_index_users_forbidden_state.rb b/db/migrate/20231214222351_drop_index_users_forbidden_state.rb
new file mode 100644
index 00000000000..aa51702c93e
--- /dev/null
+++ b/db/migrate/20231214222351_drop_index_users_forbidden_state.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class DropIndexUsersForbiddenState < Gitlab::Database::Migration[2.2]
+  milestone '16.8'
+  disable_ddl_transaction!
+
+  INDEX_NAME = :users_forbidden_state_idx
+  TABLE_NAME = :users
+
+  def up
+    remove_concurrent_index_by_name(TABLE_NAME, INDEX_NAME)
+  end
+
+  def down
+    add_concurrent_index TABLE_NAME, :id,
+      name: INDEX_NAME,
+      where: "confirmed_at IS NOT NULL AND (state <> ALL (ARRAY['blocked', 'banned', 'ldap_blocked']))"
+  end
+end