Query on Performance Impact Between String Array and String

Is there any significant performance hit to worry about if i were to set my facetable fields as a string array string[] instead of just a regular string ?

The reason is that in my dataset between different groups of items, field names are shared (with a good reason) but in some cases they are arrays of string rather than string. It seems easier to just set everything to be an array, unless there is a huge performance hit

No, there shouldn't be any difference between string array and string, except for some additional book keeping memory overhead, which will also not be significant.

Thank you 🙂