fix building primary key with autoincrement

[azmy60]

Based on this issue #2180 , the video shows that editing is disabled due to the lack of primary key, not after adding an enum column. It's disabled even before adding an enum column.

But after testing the table builder, I found that creating a column as a pk with autoincrement doesn't make the column pk. Thus the editing was disabled in the first place.

Note: There's no auto increment functionality for a PK in BigQuery and Cassandra DBs.

close #2180

[rathboma]

I think if we're expecting something different per-dialect, these should just go directly in the driver tests, but it's fine for now