function db_add_index

Adds an index.

Parameters

$table: The table to be altered.

$name: The name of the index.

$fields: An array of field names.

Related topics

Schema API: API to handle database schemas.

33 calls to db_add_index()

aggregator_update_7002 in drupal/modules/aggregator/aggregator.install: Add queued timestamp.
aggregator_update_7003 in drupal/modules/aggregator/aggregator.install: Increase the length of {aggregator_feed}.url.
aggregator_update_7004 in drupal/modules/aggregator/aggregator.install: Add index on timestamp.
comment_update_7002 in drupal/modules/comment/comment.install: Rename {comments} table to {comment} and upgrade it.
comment_update_7003 in drupal/modules/comment/comment.install: Split {comment}.timestamp into 'created' and 'changed', improve indexing on {comment}.

... See full list

File

drupal/includes/database/database.inc, line 2999: Core systems for the database layer.

Code

function db_add_index($table, $name, $fields) {
  return Database::getConnection()
    ->schema()
    ->addIndex($table, $name, $fields);
}