should running a query as instructed return zero rows?

[SJ77]

I was upgrading 4.0 to 4.1 and the installer told me to run the following query manually

ALTER TABLE `core_search_index` ADD KEY `index_date_updated` (`index_date_updated`)

doing so returned zero rows 

MySQL returned an empty result set (i.e. zero rows). (Query took 64.6747 seconds.)

Is that normal? 

[Lindy]

Yes, it's a table structure query so it's not returning a result. 

[Ryan Ashbrook]

Yes, that's normal.

[SJ77]

ok, I thought maybe a returned result would count the sum of Keys added as well.

Glad all is well, thank you guys