USE provisioning;

DROP TRIGGER IF EXISTS voip_dom_preferences_blob_insert;
DROP TRIGGER IF EXISTS voip_dom_preferences_blob_delete;
DROP TRIGGER IF EXISTS voip_contract_preferences_blob_insert;
DROP TRIGGER IF EXISTS voip_contract_preferences_blob_delete;
DROP TRIGGER IF EXISTS voip_usr_preferences_blob_insert;
DROP TRIGGER IF EXISTS voip_usr_preferences_blob_delete;
DROP TRIGGER IF EXISTS voip_peer_preferences_blob_insert;
DROP TRIGGER IF EXISTS voip_peer_preferences_blob_delete;

DROP TABLE voip_dom_preferences_blob;
DROP TABLE voip_contract_preferences_blob;
DROP TABLE voip_usr_preferences_blob;
DROP TABLE voip_peer_preferences_blob;

ALTER TABLE voip_preferences MODIFY COLUMN data_type enum('boolean','int','string','enum');