DROP TYPE

This page documents the preview version (v2.21). Preview includes features under active development and is for development and testing only. For production, use the stable version (v2024.1). To learn more, see Versioning.

Synopsis

Use the DROP TYPE statement to remove an existing user-defined data type.

Syntax

Diagram

DROPTYPEIFEXISTStype_name

Grammar

drop_type ::= DROP TYPE [ IF EXISTS ] type_name;

Where

  • type_name is an identifier (possibly qualified with a keyspace name).

Semantics

  • An error is raised if the specified type_name does not exist unless IF EXISTS option is used.
  • A user-defined type_name cannot be dropped if it is currently used in a table or another type.

Examples

ycqlsh:example> CREATE TYPE person(first_name TEXT, last_name TEXT, email TEXT);

ycqlsh:example> DROP TYPE person;

See also