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Miranda Limonczenko
4d57edd622
Refs FDBKIN-4668 Part 5 of a 5-PR stack on `apps/docs/content/guides/database/tables.mdx`. Builds on #50024. ## Problem Reader feedback in FDBKIN-4668 reports developers mixing `timestamptz` and `timestamp` across production schemas for lack of guidance. This PR adds the guidance half of that ask. The issue also asks for linting in the schema designer, which is a Frontend change and stays open. The page listed 44 data types and recommended neither side of any pair a reader actually has to choose between: `timestamp` or `timestamptz`, `varchar` or `text`, `numeric` or `float`, `integer` or `bigint`. No example on the page had a timestamp column at all, and `timestamptz` appeared only inside the reference table. ## Solution Adds a short "Choosing a type" section to the Reference group, stating a safe default for each pair and why. Also changes `salary bigint` to `salary numeric` in the private schema example. That line was checked against the wrong-outcome test in #50023 and deliberately left there, because a reader storing cents in a `bigint` gets a working table. It changes here because **this branch is what makes it wrong**: once the page recommends `numeric` for money, an example doing the opposite two screens away teaches the reader the opposite of what the page just said. ## Manual testing Preview: https://docs-git-docs-tables-datatypes-supabase.vercel.app/docs/guides/database/tables#choosing-a-type 1. Open the preview at that anchor. "Choosing a type" renders above the data type table. 2. Open `#data-types` on the same preview. It still lands on the reference table, which Studio deep-links to from three components. 3. In a local database, insert `1234.56` into `private.salaries.salary` and select `salary * 3`. Returns `3703.68` exactly. ## Verification (`test-the-docs`) Run in the Compose sandbox against a local stack. | Check | Result | | --- | --- | | `create table private.salaries` with `salary numeric` | pass | | `insert ... values (1234.56, ...)` then `select salary, salary * 3` | pass — returns `1234.56` and `3703.68`, exact | The same example failed to run at all before this stack, because `public.actors` didn't exist on the page's path. #50023 fixes that. <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit - **Documentation** - Updated the Postgres tables guide with practical guidance for choosing column types. - Added recommendations for timestamps, text, monetary and decimal values, and identifiers. - Updated the example salary column to use the `numeric` type instead of `bigint`. - Expanded the column type reference section to help readers select appropriate types for common data. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
Supabase
Supabase is the Postgres development platform. We're building the features of Firebase using enterprise-grade open source tools.
- Hosted Postgres Database. Docs
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How it works
Supabase is a combination of open source tools. We’re building the features of Firebase using enterprise-grade, open source products. If the tools and communities exist, with an MIT, Apache 2, or equivalent open license, we will use and support that tool. If the tool doesn't exist, we build and open source it ourselves. Supabase is not a 1-to-1 mapping of Firebase. Our aim is to give developers a Firebase-like developer experience using open source tools.
Architecture
Supabase is a hosted platform. You can sign up and start using Supabase without installing anything. You can also self-host and develop locally.
- Postgres is an object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
- Realtime is an Elixir server that allows you to listen to PostgreSQL inserts, updates, and deletes using websockets. Realtime polls Postgres' built-in replication functionality for database changes, converts changes to JSON, then broadcasts the JSON over websockets to authorized clients.
- PostgREST is a web server that turns your PostgreSQL database directly into a RESTful API.
- GoTrue is a JWT-based authentication API that simplifies user sign-ups, logins, and session management in your applications.
- Storage a RESTful API for managing files in S3, with Postgres handling permissions.
- pg_graphql a PostgreSQL extension that exposes a GraphQL API.
- postgres-meta is a RESTful API for managing your Postgres, allowing you to fetch tables, add roles, and run queries, etc.
- Envoy is a cloud-native, high-performance edge and service proxy.
Client libraries
Our approach for client libraries is modular. Each sub-library is a standalone implementation for a single external system. This is one of the ways we support existing tools.
| Language | Client | Feature-Clients (bundled in Supabase client) | ||||
|---|---|---|---|---|---|---|
| Supabase | PostgREST | GoTrue | Realtime | Storage | Functions | |
| ⚡️ Official ⚡️ | ||||||
| JavaScript (TypeScript) | supabase-js | postgrest-js | auth-js | realtime-js | storage-js | functions-js |
| Flutter | supabase-flutter | postgrest | supabase_auth | supabase_realtime | supabase_storage | supabase_functions |
| Swift | supabase-swift | postgrest-swift | auth-swift | realtime-swift | storage-swift | functions-swift |
| Python | supabase-py | postgrest-py | gotrue-py | realtime-py | storage-py | functions-py |
| 💚 Community 💚 | ||||||
| C# | supabase-csharp | postgrest-csharp | gotrue-csharp | realtime-csharp | storage-csharp | functions-csharp |
| Go | - | postgrest-go | gotrue-go | - | storage-go | functions-go |
| Java | - | - | gotrue-java | - | storage-java | - |
| Kotlin | supabase-kt | postgrest-kt | auth-kt | realtime-kt | storage-kt | functions-kt |
| Ruby | supabase-rb | postgrest-rb | - | - | - | - |
| Rust | - | postgrest-rs | - | - | - | - |
| Godot Engine (GDScript) | supabase-gdscript | - | - | - | - | - |
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