3 papers
cs.DB2020
Duoquest: A Dual-Specification System for Expressive SQL Queries
Christopher Baik, Zhongjun Jin, Michael Cafarella +1
Querying a relational database is difficult because it requires users to know both the SQL language and be familiar with the schema. On the other hand, many users possess enough do…
cs.DB2018
Demonstration of a Multiresolution Schema Mapping System
Zhongjun Jin, Christopher Baik, Michael Cafarella +2
Enterprise databases usually contain large and complex schemas. Authoring complete schema mapping queries in this case requires deep knowledge about the source and target schemas a…
cs.DB2018
CLX: Towards verifiable PBE data transformation
Zhongjun Jin, Michael Cafarella, H. V. Jagadish +3
Effective data analytics on data collected from the real world usually begins with a notoriously expensive pre-processing step of data transformation and wrangling. Programming By…