Chapter 8: Querying Unstructured and Semi-Structured Data
Many of the world's most valuable datasets are loosely structured. They come from application logs, which don't conform to any standards. They come from event data generated by a system that users interact with, such as a web server, which stores how users navigate an organization's website. They can also come from an analyst generating spreadsheets on a company's financial performance. This data is usually stored and shared in a semi-structured format to make it easier for others to consume. Some query engines have evolved to fully support this semi-structured data.
When talking about structured, semi-structured, and unstructured data, there are many different definitions out there. ...
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