[GENERAL] text .vs. varchar

Hello all,

I have a big database in which much information is stored in TEXT type
columns (I did this initially because I did not want to limit the
maximum size of the string to be stored)... but...

.. let's say I choose an upper limit (p.ex. 200) for the string sizes
and I start a fresh database with VARCHAR(200).

What tradeoffs can I expect ? disk usage ? query execution times ?

thx
Joao

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