There are 2 repositories under schema-inference topic.
A tool to automatically infer columns data types in .csv files
Automated assistance for the schema development lifecycle
NoSQL Data Engineering
Migrana is a Datomic migration tool that gives you the control over how your Datomic database evolves.
Schema inference for semistructured data using Formal Concept Analysis
ColumnCore is a high-performance analytical database system designed for beginners or small projects. It supports a rich SQL dialect, runs within the same process as the application, has a vectorized query execution engine, and uses a columnar storage format.