A prototype system for transforming real-world enterprise SQL logs into high-quality Text-to-SQL benchmarks using human-in-the-loop annotation workflows.

Enterprise Text-to-SQL addresses the challenge of building realistic, domain-specific Text-to-SQL datasets by combining:

• SQL log mining
• Human-in-the-loop annotation
• LLM-assisted generation and validation

This system was developed as part of the BENCHPRESS project and supports benchmark creation from internal SQL query logs.

• Live Demo: Coming soon
• Video Walkthrough: [▶ Watch on YouTube](https://www.youtube.com/coming soon)
• Poster Presentation: View the NEDB 2025 Poster(PDF)

• ✅ Upload and parse enterprise SQL logs
• ✅ Auto-cluster similar queries using LLM embeddings
• ✅ Generate natural language annotations with prompt-based LLMs
• ✅ Verify and edit annotations via an easy-to-use UI
• ✅ Export clean Text-to-SQL benchmark datasets

git clone https://github.com/fabian-wenz/enterprise-txt2sql.git
cd enterprise-txt2sql
pip install -r requirements.txt

Requirements:

• Python 3.9+
• OpenAI API Key (or compatible LLM provider)
• Optional: pgvector for clustering via vector search

python website/app.py

Then open your browser and go to:
http://localhost:8000

1. Project Setup: Create a new annotation project for a specific enterprise workload.
2. Data Ingestion: Upload SQL logs and schema files, or select a public benchmark (Bird, FIBEN, Spider, Beaver).
3. Task Configuration: Select annotation direction (SQL→NL) and a language model (e.g., GPT-4o, GPT-3.5, DeepSeek).
4. (Optional) Decomposition: Split nested SQL into simpler subqueries using CTEs.
5. Context Retrieval: Retrieve similar annotated examples and relevant tables using dense embeddings.
6. Candidate Generation: LLM generates 4 NL candidates using retrieval-augmented few-shot prompting.
7. (Optional) Recomposition: Merge subquery descriptions into a single coherent explanation.
8. Human Feedback: Annotators rank, edit, or discard LLM outputs.
9. Review & Export: Export final annotations for training or evaluation; optionally auto-evaluate if ground truth exists.

.
├── demo/                # Screenshots and videos for README
├── website/             # Preprocessing, clustering, and evaluation scripts
  ├── data/                # Sample SQL logs and generated benchmark data
  ├── templates/           # HTML templates for visualizinf the website
  ├── app.py               # Main entry point for the UI
  ├── config.py            # Prompts and LLM interaction
├── requirements.txt     # Python dependencies
└── README.md            # This file

{
  "question": "Show the top 10 customers by revenue.",
  "query": "SELECT customer_name FROM sales ORDER BY revenue DESC LIMIT 10"
}

BENCHPRESS: An Annotation System for Rapid Text-to-SQL Benchmark Curation
Fabian Wenz*, Peter Baile Chen, Moe Kayali, Michael Stonebraker, Cagatay Demiralp
Submitted to CIDR 2026
📄 coming soon on

This project was developed during Fabian Wenz’s time at MIT CSAIL with the support of:

• Prof. Michael Stonebraker
• Dr. Cagatay Demiralp
• Peter Baile Chen
• Dr. Nesime Tatbul

We welcome contributions from the community!

If you encounter bugs, want to request features, or contribute code, please:

• Submit an issue
• Fork the repo and open a pull request

This project is licensed under the MIT License. See LICENSE for more details.