parse
DROP VIRTUAL CLUSTER foo
----
DROP VIRTUAL CLUSTER foo
DROP VIRTUAL CLUSTER (foo) -- fully parenthesized
DROP VIRTUAL CLUSTER foo -- literals removed
DROP VIRTUAL CLUSTER _ -- identifiers removed

parse
DROP TENANT foo
----
DROP VIRTUAL CLUSTER foo -- normalized!
DROP VIRTUAL CLUSTER (foo) -- fully parenthesized
DROP VIRTUAL CLUSTER foo -- literals removed
DROP VIRTUAL CLUSTER _ -- identifiers removed

parse
DROP VIRTUAL CLUSTER "foo-with-hyphen"
----
DROP VIRTUAL CLUSTER "foo-with-hyphen"
DROP VIRTUAL CLUSTER ("foo-with-hyphen") -- fully parenthesized
DROP VIRTUAL CLUSTER "foo-with-hyphen" -- literals removed
DROP VIRTUAL CLUSTER _ -- identifiers removed

parse
DROP VIRTUAL CLUSTER IF EXISTS foo
----
DROP VIRTUAL CLUSTER IF EXISTS foo
DROP VIRTUAL CLUSTER IF EXISTS (foo) -- fully parenthesized
DROP VIRTUAL CLUSTER IF EXISTS foo -- literals removed
DROP VIRTUAL CLUSTER IF EXISTS _ -- identifiers removed

parse
DROP VIRTUAL CLUSTER [123]
----
DROP VIRTUAL CLUSTER [123]
DROP VIRTUAL CLUSTER [(123)] -- fully parenthesized
DROP VIRTUAL CLUSTER [_] -- literals removed
DROP VIRTUAL CLUSTER [123] -- identifiers removed

parse
DROP VIRTUAL CLUSTER [123::INT]
----
DROP VIRTUAL CLUSTER [123::INT8] -- normalized!
DROP VIRTUAL CLUSTER [((123)::INT8)] -- fully parenthesized
DROP VIRTUAL CLUSTER [_::INT8] -- literals removed
DROP VIRTUAL CLUSTER [123::INT8] -- identifiers removed

parse
DROP VIRTUAL CLUSTER foo IMMEDIATE
----
DROP VIRTUAL CLUSTER foo IMMEDIATE
DROP VIRTUAL CLUSTER (foo) IMMEDIATE -- fully parenthesized
DROP VIRTUAL CLUSTER foo IMMEDIATE -- literals removed
DROP VIRTUAL CLUSTER _ IMMEDIATE -- identifiers removed
