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-rw-r--r--doc/src/sgml/ref/truncate.sgml6
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/src/sgml/ref/truncate.sgml b/doc/src/sgml/ref/truncate.sgml
index 87516c9cc3..10c4fdd359 100644
--- a/doc/src/sgml/ref/truncate.sgml
+++ b/doc/src/sgml/ref/truncate.sgml
@@ -179,6 +179,12 @@ TRUNCATE [ TABLE ] [ ONLY ] <replaceable class="PARAMETER">name</replaceable> [
This is similar to the usual behavior of <function>currval()</> after
a failed transaction.
</para>
+
+ <para>
+ <command>TRUNCATE</> is not currently supported for foreign tables.
+ This implies that if a specified table has any descendant tables that are
+ foreign, the command will fail.
+ </para>
</refsect1>
<refsect1>