Re: BUG #19351: in pg18.1,when not null exists in the table , and add constraint problem.

On 2025-Dec-10, Srinath Reddy Sadipiralla wrote:

> ah... just after a quick code lookup, remembered that
> "not null" is treated as a column property, which is a
> flag in pg_attribute catalog table named as "attnotnull",

This is no longer true in 18.
https://www.enterprisedb.com/blog/changes-not-null-postgres-18

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Álvaro Herrera        Breisgau, Deutschland  —  https://www.EnterpriseDB.com/
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