parse
SELECT * FROM [EXPLAIN SELECT 1]
----
SELECT * FROM [EXPLAIN SELECT 1]
SELECT (*) FROM [EXPLAIN SELECT (1)] -- fully parenthesized
SELECT * FROM [EXPLAIN SELECT _] -- literals removed
SELECT * FROM [EXPLAIN SELECT 1] -- identifiers removed

parse
SELECT * FROM [SHOW TRANSACTION STATUS]
----
SELECT * FROM [SHOW TRANSACTION STATUS]
SELECT (*) FROM [SHOW TRANSACTION STATUS] -- fully parenthesized
SELECT * FROM [SHOW TRANSACTION STATUS] -- literals removed
SELECT * FROM [SHOW TRANSACTION STATUS] -- identifiers removed
