# Recurrence

> An RFC 5545 expander in SQL: rrule_occurrences lists the instants a rule starts in a range and rrule_next gives the first after an instant, matching the TypeScript expander in better-supabase/recurrence.

- Category: Scheduling
- Module: `recurrence`
- Modes: `managed`
- Docs: https://bettersupabase.com/docs/blocks/sql
- Page: https://bettersupabase.com/blocks/recurrence

## Install

```bash
npx better-supabase add recurrence
```

## Configure

Add the block to `better-supabase.config.ts`:

```ts
import { defineConfig } from "better-supabase/config";

export default defineConfig({
  blocks: {
    // Modes: "managed". The default is "managed".
    recurrence: { mode: "managed" },
  },
});
```

## Client

The block is SQL only: call its functions from your policies, RPCs and the other modules.