Bridging the Gap: Transforming Natural Language Questions into SQL Queries via Abstract Query Pattern and Contextual Schema Markup

• URL: http://arxiv.org/abs/2502.14682v1
• Date: Thu, 20 Feb 2025 16:11:27 GMT
• Title: Bridging the Gap: Transforming Natural Language Questions into SQL Queries via Abstract Query Pattern and Contextual Schema Markup
• Authors: Yonghui Kong, Hongbing Hu, Dan Zhang, Siyuan Chai, Fan Zhang, Wei Wang,
• Abstract summary: We identify two important gaps: the structural mapping gap and the lexical mapping gap. PAS-related achieves an execution accuracy of 87.9%, and leading results on the BIRD dataset with an execution accuracy of 64.67%. Results on the Spider benchmark set a new state-of-the-art on the Spider benchmark with an execution accuracy of 87.9%, and leading results on the BIRD dataset with an execution accuracy of 64.67%.
• Score: 6.249316460506702
• License:
• Abstract: Large language models have demonstrated excellent performance in many tasks, including Text-to-SQL, due to their powerful in-context learning capabilities. They are becoming the mainstream approach for Text-to-SQL. However, these methods still have a significant gap compared to human performance, especially on complex questions. As the complexity of questions increases, the gap between questions and SQLs increases. We identify two important gaps: the structural mapping gap and the lexical mapping gap. To tackle these two gaps, we propose PAS-SQL, an efficient SQL generation pipeline based on LLMs, which alleviates gaps through Abstract Query Pattern (AQP) and Contextual Schema Markup (CSM). AQP aims to obtain the structural pattern of the question by removing database-related information, which enables us to find structurally similar demonstrations. CSM aims to associate database-related text span in the question with specific tables or columns in the database, which alleviates the lexical mapping gap. Experimental results on the Spider and BIRD datasets demonstrate the effectiveness of our proposed method. Specifically, PAS-SQL + GPT-4o sets a new state-of-the-art on the Spider benchmark with an execution accuracy of 87.9\%, and achieves leading results on the BIRD dataset with an execution accuracy of 64.67\%.

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