# name: test/issues/rigger/test_624.test
# description: Issue 624
# group: [rigger]

statement ok
PRAGMA enable_verification

# ALTER TABLE results in an assertion failure 'Assertion `expr.return_type == vector.type' failed'
statement ok
CREATE TABLE t0(c0 INT, c1 VARCHAR);

statement ok
INSERT INTO t0(c1) VALUES(NULL);

statement ok
ALTER TABLE t0 ALTER c1 TYPE TIMESTAMP;