From Questions to Queries: An AI-powered Multi-Agent Framework for Spatial Text-to-SQL

• URL: http://arxiv.org/abs/2510.21045v1
• Date: Thu, 23 Oct 2025 22:58:17 GMT
• Title: From Questions to Queries: An AI-powered Multi-Agent Framework for Spatial Text-to-SQL
• Authors: Ali Khosravi Kazazi, Zhenlong Li, M. Naser Lessani, Guido Cervone,
• Abstract summary: Single-agent approaches often struggle with the semantic and syntactic complexities of spatial queries.<n>We propose a multi-agent framework designed to accurately translate natural language questions into spatial queries.<n>We evaluate our system using both the non-spatial KaggleDBQA benchmark and a new, comprehensive SpatialQA benchmark.
• Score: 0.4499833362998488
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The complexity of Structured Query Language (SQL) and the specialized nature of geospatial functions in tools like PostGIS present significant barriers to non-experts seeking to analyze spatial data. While Large Language Models (LLMs) offer promise for translating natural language into SQL (Text-to-SQL), single-agent approaches often struggle with the semantic and syntactic complexities of spatial queries. To address this, we propose a multi-agent framework designed to accurately translate natural language questions into spatial SQL queries. The framework integrates several innovative components, including a knowledge base with programmatic schema profiling and semantic enrichment, embeddings for context retrieval, and a collaborative multi-agent pipeline as its core. This pipeline comprises specialized agents for entity extraction, metadata retrieval, query logic formulation, SQL generation, and a review agent that performs programmatic and semantic validation of the generated SQL to ensure correctness (self-verification). We evaluate our system using both the non-spatial KaggleDBQA benchmark and a new, comprehensive SpatialQueryQA benchmark that includes diverse geometry types, predicates, and three levels of query complexity. On KaggleDBQA, the system achieved an overall accuracy of 81.2% (221 out of 272 questions) after the review agent's review and corrections. For spatial queries, the system achieved an overall accuracy of 87.7% (79 out of 90 questions), compared with 76.7% without the review agent. Beyond accuracy, results also show that in some instances the system generates queries that are more semantically aligned with user intent than those in the benchmarks. This work makes spatial analysis more accessible, and provides a robust, generalizable foundation for spatial Text-to-SQL systems, advancing the development of autonomous GIS.

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