doc: Clarify pg_upgrade documentation

Clarify that the restriction against reg* types only applies to table
columns using these types, not to the type appearing in any other way,
for example as a function argument.

diff --git a/doc/src/sgml/ref/pgupgrade.sgml b/doc/src/sgml/ref/pgupgrade.sgml
index 055eac31a01a82cb72033e0b586b62a1d03079a8..aaa4b04a42408672d91de201099da670b699041c 100644 (file)
--- a/doc/src/sgml/ref/pgupgrade.sgml
+++ b/doc/src/sgml/ref/pgupgrade.sgml
@@ -682,7 +682,7 @@ psql --username=postgres --file=script.sql postgres
 
   
    pg_upgrade does not support upgrading of databases
-   containing these reg* OID-referencing system data types:
+   containing table columns using these reg* OID-referencing system data types:
    regproc, regprocedure, regoper,
    regoperator, regconfig, and
    regdictionary.  (regtype can be upgraded.)