LaminarDB
Streaming SQL database in Rust, zero-alloc hot path
Details
- External ID
- 47057770
- Source
- HN
- Company
- —
- Product
- LaminarDB
- Website domain
- github.com
- Launched
- Feb. 18, 2026
- Cohort
- —
- Upvotes
- 6
- Upvotes percentile
- 0.28099730458221023
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Enrichment
- Theme
- low-level systems and developer tools
- Vertical
- Horizontal
- Function
- Data infrastructure
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- streaming sql database
- Manually corrected
- False
Could you build this?
No Building a high-throughput streaming SQL database engine in Rust with zero allocations on the hot path requires deep systems programming, database internals, and advanced memory management skills.
What it would actually take: This project requires writing a custom SQL parser and query planner adapted for continuous streaming semantics (incremental view maintenance or differential dataflow). The execution engine requires carefully architected ring buffers, custom memory arenas, and non-blocking lock-free concurrency primitives in Rust to avoid heap allocations during streaming ingest. This demands deep domain expertise in database storage engines, streaming query algebra, and low-level systems profiling.
Discussion
1 comment analyzed.
Competitors mentioned: kdb+, Flink, DataFusion
Concerns raised: No published benchmarks yet (marked 'In Progress'), Early version (v0.13.1), Pre-built binaries availability/stability unclear
Competitors
Other products that read as similar to this one — 916 launches clear the similarity bar, closest 8 shown.
Attention rank: #632 of 917 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 112 days after the earliest competitor.
- Cachekit · hn · 2026-01-14 · 47 upvotes · similarity 0.65
- Rust Database from Scratch · hn · 2026-05-20 · 8 upvotes · similarity 0.63
- Aion a Rust Database · hn · 2026-05-14 · 6 upvotes · similarity 0.62
- Syncular · hn · 2026-08-02 · 79 upvotes · similarity 0.62
- MCP-stama · hn · 2026-08-13 · 73 upvotes · similarity 0.61
- Real-Time, Streaming SQL Queries on Flight Data · hn · 2026-04-13 · 5 upvotes · similarity 0.61
- RustDesk-Suite · github · 2026-09-22 · 81 upvotes · similarity 0.60
- Tonbo · hn · 2025-12-17 · 56 upvotes · similarity 0.60
Other launches for this product
Same idea, different domain
Nobody's really built a data infrastructure tool for Media & entertainment yet.