CreateTable.io attempts to automatically match your uploaded data to the schema of the table you defined. This is done via a combination of heuristics and machine learning. The goal is to make it as easy as possible to get your data into the system. But sometimes the automatic matching will not be able to make a decision. In those cases, you will need to manually match the columns.

Over time the matching can learn from you past choices. So if you find yourself manually matching the same columns over and over, the system will learn and start to automatically match those columns for you.

If a column cant be matched it will leave it as NULL. You can always go back and change the matching later.

There are several operation you can use to work with messy matches. That is in our next section.