I am new to database design and there are many terms in the right properties pane that I do not understand. I was looking for an explanation of how to use the cardinality settings and your knowledge base came up a bit short for someone just starting like me.

Here is a link to a youtube video that helped me understand the concept and symbols

You might add more to your documentation on what each property does. So far however, I am very pleased with how easy it is to use your product and how much I have learned in a short time.

I deleted a user.

I then tried to add a user with same email address and received message below:

How do I add the new user?

In my opnion the most important feature of a database modeling tool.

Message informing that I some user (in fact me) have a control over model is visible, when I indeed am logged in. Why is that?

When creating a conceptual design diagram there is no way to create a sub-type/supertype relationship.

It would be nice to have one. This would make this a complete tool for my Database Design class that i am teaching.

Unfortunately, no error id is provided.

If a password reset is sent by clicking password reset button on account maintenance screen the url that is sent in the Email points to localhost:

We have on on-premis installation.

The captcha on the password reset does not display characters.

When I try to move objects in diagram using mouse drag&drop, the interface hangs, and 100% CPU or more is used by chrome process.

I tried on on-board GPU, and installed NVIDIA Quadro G98. On NVIDIA everything runs faster, but I still cannot move objects and more than 100% CPU is used.

Chrome 45, Linux 64-bit. NVIDIA drivers.

Code generated for sequence is:

-- Sequence: ACCOUNT_NUMBER_GROUP_SEQCREATE SEQUENCE ACCOUNT_NUMBER_GROUP_SEQ
      INCREMENT BY 1
      MINVALUE 1
      MAXVALUE 9999999999999999999999999999
      START WITH 10000 
      
      NO CYCLE
      
;

When I try to run it in PostgreSQL 9.3.5, I get an error:

ERROR: value "9999999999999999999999999999" is out of range for type bigint

Shouldn't MAXVALUE be lower? Or perhaps MAXVALUE should be omitted in this case as the default is 2^63-1?