I have a 12 varchar(50) fields in a table of about 90 million rows that I need to increase to varchar(100) in length. Each of these fields has an index (with only the one field as a member). If I increase the length of the varchar fields, will the indexes either need to be rebuilt (or would be rebuilt automatically), or would the statistics become out of date?
I don't have a reasonably sized test system test (or perhaps dont know how to see if the indexes were rebuilt or statistics need to be recomputed).
Thanks