[Table Visualization] [research] store a unique id for column data

[ananzh]

Currently, in the new Table Vis code, we have switch usage between col.id and col index frequently. For example

return sort && sort.colIndex !== null && sort.direction
      ? [{ id: dataGridColumns[sort.colIndex]?.id, direction: sort.direction }]

The reason is that when we add/remove a column, the id might change. Below is an example that I add another column day_of_week. Count id is changed.

It would be nice to understand and simply the code. I opened this as a research issue to see if we could:

• store a unique id
• use id instead of index