function db_drop_index

7.x database.inc db_drop_index($table, $name)
6.x database.pgsql.inc db_drop_index(&$ret, $table, $name)
6.x database.mysql-common.inc db_drop_index(&$ret, $table, $name)
8.x database.inc db_drop_index($table, $name)

Drops an index.

Parameters

$table: The table to be altered.

$name: The name of the index.

Related topics

21 calls to db_drop_index()
block_update_7002 in drupal/modules/block/block.install
Rename {blocks} table to {block}, {blocks_roles} to {block_role} and {boxes} to {block_custom}.
comment_update_7003 in drupal/modules/comment/comment.install
Split {comment}.timestamp into 'created' and 'changed', improve indexing on {comment}.
comment_update_7008 in drupal/modules/comment/comment.install
Update database to match Drupal 7 schema.
contact_update_7003 in drupal/modules/contact/contact.install
Change the weight column to normal int.
field_sql_storage_field_storage_update_field in drupal/modules/field/modules/field_sql_storage/field_sql_storage.module
Implements hook_field_storage_update_field().

... See full list

File

drupal/includes/database/database.inc, line 2988
Core systems for the database layer.

Code

function db_drop_index($table, $name) {
  return Database::getConnection()->schema()->dropIndex($table, $name);
}