abstract public function DatabaseSchema::addIndex in Drupal 7

Add an index.

Parameters

$table: The table to be altered.

$name: The name of the index.

$fields: An array of field names.

Throws

DatabaseSchemaObjectDoesNotExistException If the specified table doesn't exist.

DatabaseSchemaObjectExistsException If the specified table already has an index by that name.

3 methods override DatabaseSchema::addIndex()

DatabaseSchema_mysql::addIndex in includes/database/mysql/schema.inc

Add an index.

DatabaseSchema_pgsql::addIndex in includes/database/pgsql/schema.inc

Add an index.

DatabaseSchema_sqlite::addIndex in includes/database/sqlite/schema.inc

Add an index.

File

includes/database/schema.inc, line 635

Class

DatabaseSchema

Base class for database schema definitions.

Code

public abstract function addIndex($table, $name, $fields);