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Aggregate computation in relational databases has long been done using the standard unary aggregation and binary join operators. These implement the classical model of computing joins between relations two at a time, materializing the…

Databases · Computer Science 2019-06-18 Konstantinos Xirogiannopoulos , Amol Deshpande

Text-to-SQL prompt strategies based on Large Language Models (LLMs) achieve remarkable performance on well-known benchmarks. However, when applied to real-world databases, their performance is significantly less than for these benchmarks,…

Big data management aims to establish data hubs that support data in multiple models and types in an all-around way. Thus, the multi-model database system is a promising architecture for building such a multi-model data store. For an…

Databases · Computer Science 2021-05-18 Yu Yan , Nan Jiang , Hongzhi Wang , Yutong Wang , Chang Liu , Yuzhuo Wang

Most modern Text2SQL systems prompt large language models (LLMs) with entire schemas -- mostly column information -- alongside the user's question. While effective on small databases, this approach fails on real-world schemas that exceed…

Databases · Computer Science 2025-12-19 Thanh Dat Hoang , Thanh Tam Nguyen , Thanh Trung Huynh , Hongzhi Yin , Quoc Viet Hung Nguyen

Unstructured data is pervasive, but analytical queries demand structured representations, creating a significant extraction challenge. Existing methods like RAG lack schema awareness and struggle with cross-document alignment, leading to…

Databases · Computer Science 2025-11-05 Daren Chao , Kaiwen Chen , Naiqing Guan , Nick Koudas

Tables convey factual and quantitative data with implicit conventions created by humans that are often challenging for machines to parse. Prior work on table recognition (TR) has mainly centered around complex task-specific combinations of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 ShengYun Peng , Aishwarya Chakravarthy , Seongmin Lee , Xiaojing Wang , Rajarajeswari Balasubramaniyan , Duen Horng Chau

Recent advances in text-to-SQL systems have been driven by larger models and improved datasets, yet progress is still limited by the scarcity of high-quality training data. Manual data creation is expensive, and existing synthetic methods…

Machine Learning · Computer Science 2026-01-12 Marko Sterbentz , Kevin Cushing , Cameron Barrie , Kristian J. Hammond

Large language models (LLMs) have become essential for applications such as text summarization, sentiment analysis, and automated question-answering. Recently, LLMs have also been integrated into relational database management systems to…

Databases · Computer Science 2025-08-29 Kerem Akillioglu , Anurag Chakraborty , Sairaj Voruganti , M. Tamer Özsu

Generation-based testing techniques have shown their effectiveness in detecting logic bugs of DBMS, which are often caused by improper implementation of query optimizers. Nonetheless, existing generation-based debug tools are limited to…

Databases · Computer Science 2026-02-26 Xiu Tang , Sai Wu , Dongxiang Zhang , Feifei Li , Gang Chen

Generating insightful and actionable information from databases is critical in data analysis. This paper introduces a novel approach using Large Language Models (LLMs) to automatically generate textual insights. Given a multi-table database…

Artificial Intelligence · Computer Science 2025-03-18 Alberto Sánchez Pérez , Alaa Boukhary , Paolo Papotti , Luis Castejón Lozano , Adam Elwood

Analytics on structured data is a mature field with many successful methods. However, most real world data exists in unstructured form, such as images and conversations. We investigate the potential of Large Language Models (LLMs) to enable…

Large Language Models (LLMs) often struggle with the precise logic and schema alignment required for complex Text-to-SQL tasks. While current methods rely heavily on static prompting, they lack the ability to dynamically adapt and…

Computation and Language · Computer Science 2026-05-12 Haolin Yang , Jipeng Zhang , Zhitao He , Alexander Zhou , Yi R. Fung

Relational databases excel at structured data analysis, but real-world queries increasingly require capabilities beyond standard SQL, such as semantically matching entities across inconsistent names, extracting information not explicitly…

Databases · Computer Science 2026-05-15 Yin Lin , Tianjing Zeng , Zhongjun Ding , Rong Zhu , Bolin Ding , H. V. Jagadish , Jingren Zhou

Most enterprise data is distributed in multiple relational databases with expert-designed schema. Using traditional single-table machine learning techniques over such data not only incur a computational penalty for converting to a 'flat'…

Machine Learning · Computer Science 2012-03-14 Geetha Manjunatha , M Narasimha Murty , Dinkar Sitaram

In this paper, we explore the question of whether large language models can support cost-efficient information extraction from tables. We introduce schema-driven information extraction, a new task that transforms tabular data into…

Computation and Language · Computer Science 2024-11-22 Fan Bai , Junmo Kang , Gabriel Stanovsky , Dayne Freitag , Mark Dredze , Alan Ritter

Large language models (LLMs) have advanced Text-to-SQL, yet existing solutions still fall short of system-level reliability. The limitation is not merely in individual modules -- e.g., schema linking, reasoning, and verification -- but more…

Databases · Computer Science 2026-04-06 Boyan Li , Chong Chen , Zhujun Xue , Yinan Mei , Yuyu Luo

Table learning, which lies at the intersection of machine learning and modern database systems, has recently attracted growing attention. However, existing table learning frameworks typically require explicit data export and extensive…

Databases · Computer Science 2026-02-13 Feiyang Chen , Ken Zhong , Aoqian Zhang , Zheng Wang , Li Pan , Jianhua Li

Tabular data synthesis involves not only multi-table synthesis but also generating multi-modal data (e.g., strings and categories), which enables diverse knowledge synthesis. However, separating numerical and categorical data has limited…

Machine Learning · Computer Science 2025-03-21 Tung Sum Thomas Kwok , Chi-Hua Wang , Guang Cheng

LLMs when used with Retrieval Augmented Generation (RAG), are greatly improving the SOTA of translating natural language queries to structured and correct SQL. Unlike previous reviews, this survey provides a comprehensive study of the…

Computation and Language · Computer Science 2025-02-05 Ali Mohammadjafari , Anthony S. Maida , Raju Gottumukkala

Existing text-to-SQL semantic parsers are typically designed for particular settings such as handling queries that span multiple tables, domains or turns which makes them ineffective when applied to different settings. We present UniSAr…

Computation and Language · Computer Science 2022-04-14 Longxu Dou , Yan Gao , Mingyang Pan , Dingzirui Wang , Wanxiang Che , Dechen Zhan , Jian-Guang Lou
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