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## Context Part of an investigation to see how we can make the dashboard more resilient for large databases by ensuring that the dashboard never becomes the reason for taking down the database accidentally. Am proposing that for interfaces that rely heavily on queries to the database for data to render, we add preflight checks to ensure that we never run queries that exceed a certain cost threshold (and also have UI handlers to communicate this) - this can be done by running an EXPLAIN query before running the actual query, and if the cost from the EXPLAIN exceeds a specified threshold, the UI throws an error then and skips calling the actual query. ## Demo Am piloting this with the Table Editor, and got an example here in which my table has 500K+ rows, and I'm trying to sort on an unindexed column: https://github.com/user-attachments/assets/ccad2ea9-d62c-4106-8295-2a6df5941474 With this UX, the pros are that - It's relatively seamless and not too invasive, most users won't notice this unless they run into this specific scenario - We can incrementally apply this to other parts of the dashboard, next will probably be Auth Users for example However there are some considerations: - The additional EXPLAIN query adds a bit more latency to the query since its a separate API request to the query endpoint - ^ On a similar note, it will hammer the API a bit more, which may result in higher probability of 429s - However, I reckon that the preflight checks are meant to be used sparingly and only for certain parts of the dashboard that we believe may cause high load. - e.g for the Table Editor, reckon we only need this for fetching rows? The count query is largely optimized already (although we could just add a preflight check there too) - It's just meant to be a safeguard to prevent running heavy queries on the database <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Query preflight with cost checks and a user-facing high-cost dialog showing cost details and remediation suggestions. * Grid exposes an explicit error flag and surfaces richer error metadata. * **Bug Fixes** * Standardized error handling and more consistent error displays across the app. * Explain analysis now reports an additional max-cost metric for queries. * **UI** * Tweaked empty-state interaction/layout and slightly wider header delete control. <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Co-authored-by: Ali Waseem <waseema393@gmail.com>
Supabase
Supabase is the Postgres development platform. We're building the features of Firebase using enterprise-grade open source tools.
- Hosted Postgres Database. Docs
- Authentication and Authorization. Docs
- Auto-generated APIs.
- Functions.
- File Storage. Docs
- AI + Vector/Embeddings Toolkit. Docs
- Dashboard
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Community & Support
- Community Forum. Best for: help with building, discussion about database best practices.
- GitHub Issues. Best for: bugs and errors you encounter using Supabase.
- Email Support. Best for: problems with your database or infrastructure.
- Discord. Best for: sharing your applications and hanging out with the community.
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.
- Kong is a cloud-native API gateway.
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-dart | gotrue-dart | realtime-dart | storage-dart | functions-dart |
| 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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