LinkedQL
Live Queries over Postgres, MySQL, MariaDB
Details
- External ID
- 46192545
- Source
- HN
- Company
- —
- Product
- LinkedQL
- Website domain
- github.com
- Launched
- Dec. 8, 2025
- Cohort
- —
- Upvotes
- 31
- Upvotes percentile
- 0.7366412213740458
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
LinkedQL is a new SQL client that supports live queries over any Postgres, MySQL, and MariaDB database. You get result sets that self-update differentially as rows change in your database – via inserts, updates, deletes. Works with no extra tooling/ORM layer or GraphQL servers. You opt into live mode simply with a flag: client.query('SELECT ...', { live: true }). More at: https://linked-ql.netlify.app/capabilities/live-queriesLinkedQL is written in JavaScript and runs in both client and server environments.GitHub + docs: https://github.com/linked-db/linked-qlDemo examples included.I’d love feedback: • Anything confusing? • Anything seems useful or dangerous? • Anything else that'd make you consider LinkedQL for production?Thanks for taking a look — happy to answer any questions.
Enrichment
- Theme
- database infrastructure and developer tools
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- live query tool for sql databases
- Manually corrected
- False
Could you build this?
No Real-time differential live queries over standard SQL databases require database change-data-capture (CDC), query AST parsing, and complex incremental view maintenance (IVM) algorithms.
What it would actually take: The architecture requires hooking into PostgreSQL logical replication (wal2json/pgoutput) and MySQL binary logs (binlog), parsing arbitrary SQL queries into relational algebra trees, and computing differential delta updates whenever underlying tables mutate (incremental view maintenance). This involves advanced database internals, formal relational algebra rewriting, and high-performance in-memory delta caches.
Discussion
20 comments analyzed.
Competitors mentioned: Webflo (their own framework for long-lived connections), Zero (Rocicorp's sync framework), Postgres extensions, REST APIs with WebSocket subscriptions
Concerns raised: PostgreSQL limits logical replication slots via max_replication_slots, MySQL/MariaDB support still in progress, not yet production-ready, WAL slot consumption at scale with multiple instances, Deployment lifecycle and code changes with live queries, Schema migration story incomplete in current version
Feature requests: Deployment diagram and documentation for setup, Multi-instance coordination and load balancing for live queries, Postgres extension for tighter operational integration, FlashQL frontend persistence backends (IndexedDB/LocalStorage), Automatic schema versioning and diff-based migrations
Competitors
Other products that read as similar to this one — 108 launches clear the similarity bar, closest 8 shown.
Attention rank: #41 of 109 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 40 days after the earliest competitor.
- PostgreSQL Migrator · ph · 2026-09-17 · 2 upvotes · similarity 0.51
- Pg-typesafe · hn · 2026-02-17 · 69 upvotes · similarity 0.50
- PostgreSQL course with database running in your browser · hn · 2026-07-19 · 6 upvotes · similarity 0.48
- VillageSQL · hn · 2026-02-05 · 12 upvotes · similarity 0.48
- SQL-tap · hn · 2026-02-14 · 233 upvotes · similarity 0.46
- Netlify Database · ph · 2026-04-29 · 255 upvotes · similarity 0.46
- DB Pro · hn · 2025-11-28 · 33 upvotes · similarity 0.46
- VillageSQL = MySQL and Extensions · hn · 2026-02-05 · 27 upvotes · similarity 0.45
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.