Warning without any faults!

I get a warning like this after a SP has run:

array (size = 1) 0=> array (size = 3) Level=> str9ing: Warning (length=7) Code=> nu9mber: 1329 (length=4) Message=> str9ing: No data - zero rows fetched, selected, or processed (length=51)

It tells me that nothing has been fetched but the server has fetched everything I asked for.

Why is the server issuing a warning when everything went OK? It works without warnings in MySQL

My web host runs MariaDB-1:10.3.11+mariabionic

My lokal machine runs 5.7.21 - MySQL Community Server (GPL)


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