The S3 source enables syncing of file-based tables with support for multiple files using glob-like pattern matching, and both Full Refresh and Incremental syncs, using the last_modified property of files to determine incremental batches. You can choose if this connector will read only the new/updated files, or all the matching files, every time a sync is run.

Snowflake is a fast and scalable data warehouse. Jitsu can works with Snowflake both in stream and batch modes. For batching, you'll need to provide an access either to Amazon S3 or to Google's Cloud storage bucket