DROP INDEX

Synopsis

The DROP INDEX statement removes an index and all of its data from the database.

Syntax

Diagram

Grammar

drop_index ::= DROP INDEX [ IF EXISTS ] index_name;

Where

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

Semantics

• An error is raised if the specified index_name does not exist unless IF EXISTS option is present.
• Associated objects to index_name such as prepared statements will be eventually invalidated after the drop statement is completed.

Examples

cqlsh:example> CREATE TABLE users(id INT PRIMARY KEY, name TEXT) WITH transactions = { 'enabled' : true };

cqlsh:example> CREATE INDEX users_by_name ON users(name);

cqlsh:example> DROP INDEX users_by_name;

See also

• CREATE TABLE
• CREATE INDEX