doc: Clarify not-null constraints in information schema
authorPeter Eisentraut <peter@eisentraut.org>
Wed, 4 Oct 2023 13:03:48 +0000 (15:03 +0200)
committerPeter Eisentraut <peter@eisentraut.org>
Wed, 4 Oct 2023 13:03:48 +0000 (15:03 +0200)
commitaf2324fabf0020e464b0268be9ef03e8f46ed84b
tree8775099cfc4a22d6612f1b1e52637595c467d85a
parent3338a9838298c4b42e2829373f70228c4fc50652
doc: Clarify not-null constraints in information schema

Add a bit of clarification in various places that not-null constraints
are included under check constraints in the information schema.
doc/src/sgml/information_schema.sgml