how can i represent reddit style nested comments in Supabase?
how can i represent reddit style nested comments in Supabase?

To represent Reddit-style nested comments in Supabase, you can use a self-referential relationship in your comments table. Here's a step-by-step guide:

1. Create a comments table with the following columns:
   - id (primary key, unique, auto-incrementing)
   - post_id (foreign key referencing the post table)
   - user_id (foreign key referencing the users table)
   - parent_id (nullable, foreign key referencing the comments table for nested comments)
   - content (the actual comment content)
   - created_at (timestamp)
   - updated_at (timestamp)

2. With this setup, each comment can have a parent comment, and you can recursively traverse the comments to get the nested structure.

3. When querying comments, you can use SQL recursive common table expressions (CTEs) to fetch the nested comments. Here's an example query:

```sql
WITH RECURSIVE nested_comments AS (
  SELECT
    id,
    post_id,
    user_id,
    content,
    created_at,
    updated_at,
    0 as depth
  FROM comments
  WHERE parent_id IS NULL

  UNION ALL

  SELECT
    c.id,
 Supabase is a backend-as-a-service platform that provides you with a PostgreSQL database and a set of tools to manage it. To represent Reddit-style nested comments in Supabase, you can create a self-referential table structure in your PostgreSQL database. Here's an example schema for a `comments` table:

```sql
CREATE TABLE comments (
    id serial PRIMARY KEY,
    parent_id integer REFERENCES comments(id),
    post_id integer REFERENCES posts(id),
    user_id integer REFERENCES users(id),
    content text,
    created_at timestamp with time zone NOT NULL DEFAULT NOW(),
    updated_at timestamp with time zone NOT NULL DEFAULT NOW()
);
```

In this schema, the `parent_id` column refers to the `id` of the parent comment, allowing you to create a hierarchical structure for the comments. If a comment has no parent, its `parent_id` will be `NULL`.

To retrieve the comments with their nesting, you can use recursive Common Table Expressions (CTEs) in a PostgreSQL query. Here's an example query:

```sql
WITH RECURSIVE nested_comments AS (
    SELECT id, parent_id, content, created_at, user_id