# name: test/fuzzer/pedro/alter_column_generated.test
# description: Issue #4677: heap-buffer-overflow on ALTER statement
# group: [pedro]

statement ok
PRAGMA enable_verification

statement ok
CREATE TABLE t0(c0 AS (1), c1 INT);

statement ok
ALTER TABLE t0 ALTER c1 SET NOT NULL;

statement ok
ALTER TABLE t0 ALTER c1 SET NOT NULL;

statement error
ALTER TABLE t0 ALTER c0 SET NOT NULL;
----
<REGEX>:Binder Error.*Unsupported constraint.*

statement error
INSERT INTO t0 VALUES (NULL);
----
<REGEX>:Constraint Error.*NOT NULL.*failed.*

statement ok
DROP TABLE t0;

statement ok
CREATE TABLE t0(c0 AS (1), c1 INT);

statement ok
INSERT INTO t0 VALUES (NULL);

statement error
ALTER TABLE t0 ALTER c1 SET NOT NULL;
----
<REGEX>:Constraint Error.*NOT NULL.*failed.*