doc: Add note about generated columns in foreign tables

Peter Eisentraut <peter@eisentraut.org>

Commit: 348f57ce5be96190491e2153abb47060884f8ebf
Author: Peter Eisentraut <peter@eisentraut.org>
Date: 2019-04-08T11:47:46Z
Releases: 12.0
doc: Add note about generated columns in foreign tables

Explain that it is not enforced that querying a generated column
returns data that is consistent with the data that was stored.  This
is similar to the note about constraints nearby.

Reported-by: Amit Langote <amitlangote09@gmail.com>

Files

PathChange+/−
doc/src/sgml/ref/create_foreign_table.sgml modified +10 −0

Documentation touched