LifeTime database requirement

Is there a requirement to run LifeTime Jun 19 on a seperate database to an instance of the Platform Server or can I run LT on the PS database if I use different tablespace and index names etc ie prefix all LT users, tables and indexes with LT_

There is no such requirement. Why do you assume there is?

I have created my LifeTime users and tablespaces all with default names and with a 'LT_' prefix on the same db as a Development Environment instance. 

But I am getting an error when Configuration Tool runs the Service Center installation and tries to deploy an index to the Espace_Reference entity:


Service Center Installer v11.0.212.9

Start installing Service Center v11.0.212.9...

This operation may take a few minutes to complete...
Publishing Extension(s)...
Publishing Extension 'OMLProcessor'...
Publishing Extension 'IntegrationStudio'...
Publishing Extension 'PlatformLogs'...
Reading ServiceCenter.oml oml file information...
Adding ServiceCenter eSpace to database...
Compiling ServiceCenter eSpace...
Deploying ServiceCenter eSpace...
Message 1
  [Error] Upgrade Error
Could not create index on 'SS_KEY,PRODUCER_SS_KEY,KIND,CONSUMER_VERSION_ID' of entity 'Espace_Reference'.