The PostgreSQL Query Optimizer That Actually Reads Your EXPLAIN PLAN
PlanCheck analyzes real PostgreSQL execution plans to verify whether an optimization truly improves performance — not just whether it sounds correct.
93 of 100 early access spots claimed.
No credit card. No calls. Results via email in <24h.
Planner ignored index due to low selectivity estimate
Cost reduced from 48,231 to 3,102
"It caught a missing index that ChatGPT completely missed. Query went from 892ms to 12ms."
— Alex, Data Engineer at a mid-sized SaaS company
Why "Try This" Isn't Enough
ChatGPT (All Databases)
- —Guesses based on general SQL patterns
- —Suggests rewrites (you test and hope)
- —Treats EXPLAIN as a text block
- —May hallucinate indexes or planner behavior
PlanCheck (PostgreSQL)
- Diagnoses your planner's exact bottleneck
- Shows predicted plan before you run changes
- Parses plan structure (nodes, costs, scans, joins)
- Knows an index exists — and why PostgreSQL didn't use it
How it works
You Paste
Your slow PostgreSQL query and its full EXPLAIN (ANALYZE) output
We Diagnose
PlanCheck parses the execution plan to identify the exact bottleneck
e.g. "Sequential Scan on 1.2M rows despite existing index"
You Receive via Email (<24h)
- Optimized query
- Side-by-side plan comparison
- Plain-English explanation of why it's faster
No dashboards yet. This is a high-touch early access service.
Early Access: Human-Verified Optimizations
For the first 100 users, every optimization is personally reviewed to guarantee accuracy.
This is a high-touch, expert-level service while automation is being built.
You submit your query → I diagnose the plan → You get verified proof via email.
5 free optimizations per week. No credit card.
Submit Your Query for a Free Optimization
What Happens Next:
- Submit your query and plan
- Receive email confirmation within 5 minutes
- Get verified optimization + predicted plan within 24 hours