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LaminarDB

Streaming SQL database in Rust, zero-alloc hot path

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HN · launched Feb 18, 2026 · 6 upvotes (top 72%) · 0 views

Niche: database management systems and engines · 162 launches, 5 in the last 7 days ▼ -17% · Explore this niche →

Category and tags
  • Horizontal
  • Data infrastructure
  • Developer
  • Not AI
  • Commercial product

Visit website ↗ Source listing ↗

More like this: all 162 launches in database management systems and engines →

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 : 2258 launches clear the similarity bar, closest 8 shown.

Attention rank: #1613 of 2259 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 112 days after the earliest competitor.

  • kividb · github · 2026-10-16 · 316 upvotes · similarity 0.71
  • pagedb · github · 2026-10-19 · 74 upvotes · similarity 0.67
  • Cachekit · hn · 2026-01-14 · 47 upvotes · similarity 0.67
  • Rust Database from Scratch · hn · 2026-05-20 · 8 upvotes · similarity 0.64
  • Syncular · hn · 2026-08-02 · 79 upvotes · similarity 0.64
  • Aion a Rust Database · hn · 2026-05-14 · 6 upvotes · similarity 0.64
  • sirocco · github · 2026-10-17 · 14 upvotes · similarity 0.63
  • MCP-stama · hn · 2026-08-13 · 73 upvotes · similarity 0.63

Related data

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