# name: test/issues/general/test_5664.test
# description: Issue 5664: Create type from non-existing type causes INTERNAL Error
# group: [general]

statement ok
PRAGMA enable_verification

# create a type with a non-existant type as source
statement error
CREATE TYPE alias as BLOBL;
----
<REGEX>:Catalog Error.*Type.*does not exist.*

statement ok
CREATE TYPE a as BLOB;

statement ok
CREATE TYPE b as a;

statement ok
CREATE TABLE test (x b);

statement ok
INSERT INTO test VALUES ('duckdb');

query I
SELECT typeof(x) FROM test;
----
BLOB