Support for Importing Data into Existing Tables

[Anish9901]

Problem

Currently, we only support creating a new table when a CSV or TSV file is imported. This limits the user's ability to append/store/view data from multiple files in one place. We would want to add support for importing data into existing tables to allow users to import data into existing tables seamlessly.

Proposed solution

To implement the above we will use a mix of already implemented APIs with some tweaks and implementation of some additional API endpoints along with some methods to accompany them.

Tasks

Allowing CSV data imports in existing tables through current APIs

• [x] #1419
• [x] #1439
• [x] #1488

Overcoming challenges caused by CSV imports and Real-world data

• [x] #1508
• [x] #1574
• [ ] #1820