Suggestion: relations

[poiNt3D]

Is your feature request related to a problem? Please describe.

It would be really useful ability to select existing rows from pre-defined other table as value of a column.
For example: You have tables: Products and Manufacturers. Products table has Manufacturer column which points to Manufacturers table row. Possibility of multiple selection would be useful in some cases.

Describe the solution you'd like

Add another data type: relation, which stores a foreign id of another table's row
Properties would include:

• Related table
• Column of another table to display in this table
• Default value (row)
• Allow multiple selection

Describe alternatives you've considered

No response

Additional context

No response

[enjeck]

Duplicate of #172. I'll start working on it soon