1 files changed, 3 insertions, 0 deletions
diff --git a/contrib/ltree/sql/ltree.sql b/contrib/ltree/sql/ltree.sql
index e9f74909a64..846b04e48ee 100644
--- a/contrib/ltree/sql/ltree.sql
+++ b/contrib/ltree/sql/ltree.sql
@@ -54,6 +54,9 @@ SELECT lca('{la.2.3,1.2.3.4.5.6,""}') IS NULL;
 SELECT lca('{la.2.3,1.2.3.4.5.6}') IS NULL;
 SELECT lca('{1.la.2.3,1.2.3.4.5.6}');
 SELECT lca('{1.2.3,1.2.3.4.5.6}');
+SELECT lca('{1.2.3}');
+SELECT lca('{1}'), lca('{1}') IS NULL;
+SELECT lca('{}') IS NULL;
 SELECT lca('1.la.2.3','1.2.3.4.5.6');
 SELECT lca('1.2.3','1.2.3.4.5.6');
 SELECT lca('1.2.2.3','1.2.3.4.5.6');