Hi All, I'm new to Delta Lake and considering to use Delta lake for one of the project with S3 or GCS as file storage. I would like to understand how the data cataloging works. Does the open source delta lake automatically creates and maintains data catalog when we create delta tables or do we need call any APIs to register the table metadata with catalog? Any pointers to documentation would be helpful. thanks.

Delta tables can be registered with a catalog or not. See more on the difference between

save

and

saveAsTable

.