Dashboards and Index Patterns

Hi Guys!

I have a question w/ regards to visualizations/dashboards created referencing a certain index pattern.

If I have a dashboard using an index pattern created from an index, will deleting the index break the index pattern which the dashboard uses? Even if for example I’ll use the same index name to re’create. OR will the index pattern automatically detect the new index w/ the same name from which it was created from?