I am trying to work may way through a new install of SDL Web 8 for the first time. I have successfully installed the CM side, and I am now looking at the CD side. I am following the instructions here: http://docs.sdl.com/LiveContent/content/en-US/SDL%20Web-v1/GUID-A1A8D2A1-7B2E-4FD0-8A81-908CAC1D133F
I noticed that the documentation says that I need to run 'Install Content Data Store.ps1' three times to create three databases (for Broker, Discovery Service and XPM).
I understand why we need separate DBs for Broker and XPM (this was the case with Tridion 2013 also), but why does the Discovery Service need it's own database with the same table design?
Can I reuse the Broker database for the Discovery Service?