parse
ALTER DATABASE db ADD SUPER REGION super_region VALUES a
----
ALTER DATABASE db ADD SUPER REGION super_region VALUES a
ALTER DATABASE db ADD SUPER REGION super_region VALUES a -- fully parenthesized
ALTER DATABASE db ADD SUPER REGION super_region VALUES a -- literals removed
ALTER DATABASE _ ADD SUPER REGION _ VALUES _ -- identifiers removed

parse
ALTER DATABASE db ADD SUPER REGION super_region VALUES a, b
----
ALTER DATABASE db ADD SUPER REGION super_region VALUES a,b -- normalized!
ALTER DATABASE db ADD SUPER REGION super_region VALUES a,b -- fully parenthesized
ALTER DATABASE db ADD SUPER REGION super_region VALUES a,b -- literals removed
ALTER DATABASE _ ADD SUPER REGION _ VALUES _,_ -- identifiers removed

parse
ALTER DATABASE db ADD SUPER REGION super_region VALUES a, b, c
----
ALTER DATABASE db ADD SUPER REGION super_region VALUES a,b,c -- normalized!
ALTER DATABASE db ADD SUPER REGION super_region VALUES a,b,c -- fully parenthesized
ALTER DATABASE db ADD SUPER REGION super_region VALUES a,b,c -- literals removed
ALTER DATABASE _ ADD SUPER REGION _ VALUES _,_,_ -- identifiers removed

parse
ALTER DATABASE db DROP SUPER REGION super_region
----
ALTER DATABASE db DROP SUPER REGION super_region
ALTER DATABASE db DROP SUPER REGION super_region -- fully parenthesized
ALTER DATABASE db DROP SUPER REGION super_region -- literals removed
ALTER DATABASE _ DROP SUPER REGION _ -- identifiers removed

parse
ALTER DATABASE ALTER ADD SUPER REGION super_region VALUES a
----
ALTER DATABASE alter ADD SUPER REGION super_region VALUES a -- normalized!
ALTER DATABASE alter ADD SUPER REGION super_region VALUES a -- fully parenthesized
ALTER DATABASE alter ADD SUPER REGION super_region VALUES a -- literals removed
ALTER DATABASE _ ADD SUPER REGION _ VALUES _ -- identifiers removed

parse
ALTER DATABASE db ALTER SUPER REGION super_region VALUES a, b
----
ALTER DATABASE db ALTER SUPER REGION super_region VALUES a,b -- normalized!
ALTER DATABASE db ALTER SUPER REGION super_region VALUES a,b -- fully parenthesized
ALTER DATABASE db ALTER SUPER REGION super_region VALUES a,b -- literals removed
ALTER DATABASE _ ALTER SUPER REGION _ VALUES _,_ -- identifiers removed
