How many bytes are used to store null values in data lake?

DB_developer
New Contributor III
 

Geeta1
Databricks Partner

Generally they require 1 byte

DB_developer
New Contributor III

Can you please provide any supporting documentation ?

-werners-
Esteemed Contributor III

there is no single answer to this.

If you look at parquet, which is a very common format on data lakes:

https://parquet.apache.org/docs/file-format/nulls/

and on SO