How frappe frame work decides to keep the fields in schema while updating?

Frappe Framework
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#1

How frappe framework decides to keep the fields in schema while updating? like if HRMS maintainers delete some fields in employee table or append some fields in the employee table/doctype and there is some fields which i have appended and when i transfer hrms from version 13 to 14 how will it compare the schemas? pretty confused in this matter

#2

Hi,

Standard schéma is saved in the .json file with same name as DocType name.

If you add any Fields via customization is saved in the database table named Custom Fields.

Thanks,

Divyesh Mangroliya