doc: mention inheritance's tableoid can be used in partitioning

Previously tableoid was not mentioned in the partition doc section.  We
only had a link to the "all the normal rules" of inheritance section.

Reported-by: [email protected]
Discussion: https://postgr.es/m/162627031219.693.11508199541771263335@wrigleys.postgresql.org

Backpatch-through: 10

diff --git a/doc/src/sgml/ddl.sgml b/doc/src/sgml/ddl.sgml
index dc978fbd7b350ddb8c5fb00c4d91327c4c0f8114..5fd2bcde362fa3042f994415e1b30598b46cd695 100644 (file)
--- a/doc/src/sgml/ddl.sgml
+++ b/doc/src/sgml/ddl.sgml
@@ -4103,7 +4103,8 @@ ALTER INDEX measurement_city_id_logdate_key
 
     
      Since a partition hierarchy consisting of the partitioned table and its
-     partitions is still an inheritance hierarchy, all the normal rules of
+     partitions is still an inheritance hierarchy,
+     tableoid and all the normal rules of
      inheritance apply as described in , with
      a few exceptions: