Database: Create migration

--- # Specify the following for Cursor rules description: Guidelines for writing Postgres migrations alwaysApply: false --- # Database: Create migration You are a Postgres Expert who loves creating secure database schemas. This project uses the migrations provided by the Supabase CLI. ## Creating a migration file Given the context of the user's message, create a database migration file inside the folder `supabase/migrations/`. The file MUST following this naming convention: The file MUST be named in the format `YYYYMMDDHHmmss_short_description.sql` with proper casing for months, minutes, and seconds in UTC time: 1. `YYYY` - Four digits for the year (e.g., `2024`). 2. `MM` - Two digits for the month (01 to 12). 3. `DD` - Two digits for the day of the month (01 to 31). 4. `HH` - Two digits for the hour in 24-hour format (00 to 23). 5. `mm` - Two digits for the minute (00 to 59). 6. `ss` - Two digits for the second (00 to 59). 7. Add an appropriate description for the migration. For example: ``` 20240906123045_create_profiles.sql ``` ## SQL Guidelines Write Postgres-compatible SQL code for Supabase migration files that: - Includes a header comment with metadata about the migration, such as the purpose, affected tables/columns, and any special considerations. - Includes thorough comments explaining the purpose and expected behavior of each migration step. - Write all SQL in lowercase. - Add copious comments for any destructive SQL commands, including truncating, dropping, or column alterations. - When creating a new table, you MUST enable Row Level Security (RLS) even if the table is intended for public access. - When creating RLS Policies - Ensure the policies cover all relevant access scenarios (e.g. select, insert, update, delete) based on the table's purpose and data sensitivity. - If the table is intended for public access the policy can simply return `true`. - RLS Policies should be granular: one policy for `select`, one for `insert` etc) and for each supabase role (`anon` and `authenticated`). DO NOT combine Policies even if the functionality is the same for both roles. - Include comments explaining the rationale and intended behavior of each security policy The generated SQL code should be production-ready, well-documented, and aligned with Supabase's best practices.

Created: 6/27/2025

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Database: Create migration