How can I define a variable length (dynamic) field in Odoo?

Question

Hi Mates,
I think psql support* var char* and odoo has no such variable length fields.
For a case,
Odoo docs defines: Char: A string of limited length. The required size parameter determines its size.
Where we can give its size as field attribute like  size=30 .

But, I am looking for a field (Char / Text) where the size should be dynamic (Based on the value stored in it). I think this can save many reserved memory.
Any hints ?

O Sluys · Accepted Answer

Odoo only uses varchar data types in the database, even though in your source code you specify it as a Char field. I did a search of all data types used in the database and there wasn't a single table column that had a data type of char .

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