task_categories:text-generation task_categories:question-answering task_categories:table-question-answering language:en license:cc-by-4.0 size_categories:n<1K format:json modality:text library:datasets library:pandas library:mlcroissant library:polars arxiv:1809.08887 region:us SQL code NLP text-to-sql context-sql spider wikisql sqlglot