Add test to catch circular dep when creating sinks from materialized …

…views

e2e_test/sink/sink_into_table/basic.slt

@@ -362,6 +362,35 @@ drop table t_b;
 statement ok
 drop table t_c;
 
+# cycle check (with materialize view)
+
+statement ok
+create table t_a(v int primary key);
+
+statement ok
+create materialized view m_a as select v from t_a;
+
+statement ok
+create table t_b(v int primary key);
+
+statement ok
+create sink s_a into t_b as select v from m_a;
+
+statement error Creating such a sink will result in circular dependency
+create sink s_b into t_a as select v from t_b;
+
+statement ok
+drop sink s_a;
+
+statement ok
+drop table t_b;
+
+statement ok
+drop materialized view m_a;
+
+statement ok
+drop table t_a;
+
 # multi sinks
 
 statement ok