parse
DROP DATABASE a
----
DROP DATABASE a
DROP DATABASE a -- fully parenthesized
DROP DATABASE a -- literals removed
DROP DATABASE _ -- identifiers removed

parse
EXPLAIN DROP DATABASE a
----
EXPLAIN DROP DATABASE a
EXPLAIN DROP DATABASE a -- fully parenthesized
EXPLAIN DROP DATABASE a -- literals removed
EXPLAIN DROP DATABASE _ -- identifiers removed

parse
DROP DATABASE IF EXISTS a
----
DROP DATABASE IF EXISTS a
DROP DATABASE IF EXISTS a -- fully parenthesized
DROP DATABASE IF EXISTS a -- literals removed
DROP DATABASE IF EXISTS _ -- identifiers removed

parse
DROP DATABASE a CASCADE
----
DROP DATABASE a CASCADE
DROP DATABASE a CASCADE -- fully parenthesized
DROP DATABASE a CASCADE -- literals removed
DROP DATABASE _ CASCADE -- identifiers removed

parse
DROP DATABASE a RESTRICT
----
DROP DATABASE a RESTRICT
DROP DATABASE a RESTRICT -- fully parenthesized
DROP DATABASE a RESTRICT -- literals removed
DROP DATABASE _ RESTRICT -- identifiers removed
