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authorTom Lane <tgl@sss.pgh.pa.us>2020-11-06 12:14:46 -0500
committerTom Lane <tgl@sss.pgh.pa.us>2020-11-06 12:14:46 -0500
commit583fcf2f57594cc73fe537b2bf18cfbc6b13336f (patch)
tree2ef54a151554ea07039ff1cd79f63957361ca50c
parent04c4b495b1c93c40bc989c450ca8fb5bea965e27 (diff)
Doc: undo mistaken adjustment to LOCK TABLE docs in back branches.
Commits 59ab4ac32 et al mistakenly copied-and-pasted some text about how LOCK on a view recurses to referenced tables into pre-v11 branches, which in fact don't do that. Undo that, and instead state clearly that they don't. (I also chose to add a note that this behavior changed in v11. We usually don't back-patch such statements, but since it's easy to add the warning now, might as well.) Noted while considering followup fixes for bug #16703. Discussion: https://postgr.es/m/16703-e348f58aab3cf6cc@postgresql.org
-rw-r--r--doc/src/sgml/ref/lock.sgml9
1 files changed, 7 insertions, 2 deletions
diff --git a/doc/src/sgml/ref/lock.sgml b/doc/src/sgml/ref/lock.sgml
index 7f40177129c..9b33ddc637c 100644
--- a/doc/src/sgml/ref/lock.sgml
+++ b/doc/src/sgml/ref/lock.sgml
@@ -117,8 +117,13 @@ LOCK [ TABLE ] [ ONLY ] <replaceable class="PARAMETER">name</replaceable> [ * ]
table is locked. If <literal>ONLY</literal> is not specified, the table and all
its descendant tables (if any) are locked. Optionally, <literal>*</literal>
can be specified after the table name to explicitly indicate that
- descendant tables are included. When locking a view, all relations appearing
- in the view definition are locked, regardless of <literal>ONLY</literal>.
+ descendant tables are included.
+ </para>
+
+ <para>
+ Locking a view locks only the view object itself, not any referenced
+ relations. (Note that this behavior is different
+ in <productname>PostgreSQL</productname> v11 and later.)
</para>
<para>