diff --git a/changelogs/fragments/882-postgresql_db-restore-fix.yml b/changelogs/fragments/882-postgresql_db-restore-fix.yml
new file mode 100644
index 00000000..e61b42eb
--- /dev/null
+++ b/changelogs/fragments/882-postgresql_db-restore-fix.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - postgresql_db - restoring from ``.sql`` files would execute the file twice. The module now avoids using both ``--file`` and stdin redirection simultaneously (https://github.com/ansible-collections/community.postgresql/issues/882). 
\ No newline at end of file
diff --git a/plugins/modules/postgresql_db.py b/plugins/modules/postgresql_db.py
index 5976b80f..0724dd5d 100644
--- a/plugins/modules/postgresql_db.py
+++ b/plugins/modules/postgresql_db.py
@@ -646,7 +646,7 @@ def db_restore(module, target, target_opts="",
     else:
         if any(substring in cmd for substring in ['--format=Directory', '--format=Custom']):
             cmd = '{0} {1}'.format(cmd, shlex_quote(target))
-        else:
+        elif '--file=' not in cmd:
             cmd = '{0} < {1}'.format(cmd, shlex_quote(target))
 
     return do_with_password(module, cmd, password)