They are expando values and go into the expando tables.

You should not access these tables directly, instead use the Expando APIs to access the values.

All the information pertaining to custom attributes regardless of where it is used are saved to expando tables. There are expandocolumn, expandorow, expandotable, and explandovalue tables. If you create too many custom attributes with many rows, performance may degrade because of this.

Hi Hitoshi,

What will be the best approach to go forward If I have to create extra fields for OOTB liferay components such Organization/User.

Is it by creating a custom table using new service.xml for extra fields which stores all those extra fields.

For e.g., I need to create 5-8 extra fields for organization, In my case I might be having 50,000 organizations.

Thanks,
- Nagendra Kumar