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function search_update_7000 in Drupal 7

Replace unique keys in 'search_dataset' and 'search_index' by primary keys.

File

modules/search/search.install, line 161
Install, update and uninstall functions for the search module.

Code

function search_update_7000() {
  db_drop_unique_key('search_dataset', 'sid_type');
  $dataset_type_spec = array(
    'type' => 'varchar',
    'length' => 16,
    'not null' => TRUE,
    'description' => 'Type of item, e.g. node.',
  );
  db_change_field('search_dataset', 'type', 'type', $dataset_type_spec);
  db_add_primary_key('search_dataset', array(
    'sid',
    'type',
  ));
  db_drop_index('search_index', 'word');
  db_drop_unique_key('search_index', 'word_sid_type');
  $index_type_spec = array(
    'type' => 'varchar',
    'length' => 16,
    'not null' => TRUE,
    'description' => 'The {search_dataset}.type of the searchable item to which the word belongs.',
  );
  db_change_field('search_index', 'type', 'type', $index_type_spec);
  db_add_primary_key('search_index', array(
    'word',
    'sid',
    'type',
  ));
}