Removes a class from the schema.
DROP CLASS <class> [IF EXISTS] [ UNSAFE ]
<class>Defines the class you want to remove.
IF EXISTS(since v 2.2.13) Drops the class only if it exists (does nothing if it doesn't)
UNSAFEDefines whether the command drops non-empty edge and vertex classes. Note, this can disrupt data consistency. Be sure to create a backup before running it.
NOTE: Bear in mind, that the schema must remain coherent. For instance, avoid removing calsses that are super-classes to others. This operation won't delete the associated cluster.
Remove the class
DROP CLASS Account
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