10 calls to db_drop_index() in Drupal 6

locale_update_6004 in modules/locale/locale.install

Fix remaining inconsistent indexes.

system_update_6019 in modules/system/system.install

Reconcile small differences in the previous, manually created mysql and pgsql schemas so they are the same and can be represented by a single schema structure.

system_update_6022 in modules/system/system.install

Update files tables to associate files to a uid by default instead of a nid. Rename file_revisions to upload since it should only be used by the upload module used by upload to link files to nodes.

system_update_6023 in modules/system/system.install

system_update_6025 in modules/system/system.install

Increase the maximum length of node titles from 128 to 255.

system_update_6035 in modules/system/system.install

Change index on system table for better performance.

system_update_6036 in modules/system/system.install

Change the search schema and indexing.

system_update_6043 in modules/system/system.install

Update table indices to make them more rational and useful.

system_update_6049 in modules/system/system.install

Replace src index on the {url_alias} table with src, language.

system_update_6055 in modules/system/system.install

Improve indexes on the {url_alias} table.