mroonga_last_insert_grn_id()
mroonga_last_insert_grn_id() UDF provides functionality to get id of last inserted record.
This id is unique in Groonga.
It returns id of last inserted record.
5.5.3. mroonga_highlight_html()
mroonga_highlight_html()
5.5.5. mroonga_normalize()
mroonga_normalize()