Dial: A Knowledge-Grounded Dialect-Specific NL2SQL System
Enterprises commonly deploy heterogeneous database systems, each of which owns a distinct SQL dialect with different syntax rules, built-in functions, and execution constraints. However, most existing NL2SQL methods assume a single canonical dialect (e.g., SQLite) and struggle to produce queries that are both semantically correct and executable on target engines. Prompt-based approaches tightly couple intent reasoning with dialect syntax, rule-based translators often degrade native operators into generic constructs, and multi-dialect fine-tuning suffers from cross-dialect interference. In this paper, we present Dial, a knowledge-grounded framework for dialect-specific NL2SQL. Dial introdu...
| Authors | Xiang Zhang, Hongming Xu, Le Zhou et al. |
|---|---|
| Primary category | cs.DB |
| Published | 8 March 2026 |
| Last updated at source | 19 September 2026 |
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