DecoSearch: Complexity-Aware Routing and Plan-Level Repair for Text-to-SQL

In three linesDecoSearch is a training-free framework for text-to-SQL translation that routes queries by complexity. A schema selector prunes the database, an LLM judger decides if decomposition is needed, and a DAG solves atomic sub-questions. Achieves 70.53% on BIRD and 88.31% on Spider with DeepSeek, outperforming training-free baselines.

Summary generated by Claude — human-verified