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From: PG Doc comments form <[email protected]>
To: [email protected]
Cc: [email protected]
Subject: The CREATE TABLE documentation groups NOT NULL under table_constraint.
Date: Fri, 03 Apr 2026 10:27:22 +0000
Message-ID: <177521204282.3221089.12751196147738658456@wrigleys.postgresql.org> (raw)

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/18/ddl.html
Description:

Unlike UNIQUE or CHECK, NOT NULL cannot be used standalone at the table
level in a standard way
Example: CREATE TABLE t (a int, NOT NULL a); fails.
It only works as an "out-of-line" constraint in very specific inheritance
scenarios.

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