7 calls to db_drop_primary_key() in Drupal 7

field_sql_storage_update_7001 in modules/field/modules/field_sql_storage/field_sql_storage.install

Remove the field_config_entity_type table and store 'entity_type' strings.

field_sql_storage_update_7002 in modules/field/modules/field_sql_storage/field_sql_storage.install

Fix primary keys in field revision data tables.

node_update_7016 in modules/node/node.install

Change {history}.nid to an unsigned int in order to match {node}.nid.

system_update_7065 in modules/system/system.install

Remove the default value for sid.

trigger_update_7000 in modules/trigger/trigger.install

Alter the "hook" field and drop the "op field" of {trigger_assignments}.

trigger_update_7001 in modules/trigger/trigger.install

Increase the length of the "hook" field to 78 characters.

update_fix_d7_requirements in includes/update.inc

Perform Drupal 6.x to 7.x updates that are required for update.php to function properly.