Do deleted fields remain in a database?

Question

Hi everyone,

I'm testing Odoo studio by inserting custom fields. It happens that if I delete a field and then recreate it with new characteristics, the deleted one remains in a sort of database. Now I have a series of duplicate fields, isn't it possible to eliminate them completely?

Let me give an example:
I create a select field called "VAT number", then I realize that I need a checkbox, so I delete the select and create the new checkbox field "VAT number"
If I then have to create a rule or a

Cédric Paradis · Accepted Answer

I'm pretty sure they do. Our database is full of duplicated fields from Studio customizations.
I would suggest you create the field from the technical settings (Settings>Technical Settings > Models), name them accordingly and select the right type.
Afterwards, you'll be able to drag them into studio like any other built-in field and change the widget type and other settings. If you remove them from your view, you'll be able to drag them back in without studio creating a new field.

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