Effective in version 10.2.1, you can sample the hierarchal data in JavaScript Object Notation Lines (JSONL) files you add to your project as the first step in data preparation. Enterprise Data Lake converts the JSON file structure into a flat structure, and presents the data in a worksheet that you use to sample the data.

For more information, see the "Prepare Data" chapter in the

Informatica 10.2.1 Enterprise Data Lake User Guide

.