ALTER TABLE host ALTER COLUMN icon_image_alt TYPE text;
ALTER TABLE service ALTER COLUMN icon_image_alt TYPE text;

COMMENT ON COLUMN endpoint.properties_checksum IS 'sha1(all properties)';
COMMENT ON COLUMN comment.properties_checksum IS 'sha1(all properties)';
COMMENT ON COLUMN notification.properties_checksum IS 'sha1(all properties)';

ALTER TABLE timeperiod_range ALTER COLUMN range_value TYPE text;

INSERT INTO icingadb_schema (version, timestamp)
  VALUES (4, extract(epoch from now()) * 1000);