5.5. UDF (User Defined Functions)# Mroonga provides some useful functionality as UDF (User Defined Functions). 5.5.1. mroonga_command() 5.5.2. mroonga_escape() 5.5.3. mroonga_highlight_html() 5.5.4. mroonga_last_insert_grn_id() 5.5.5. mroonga_normalize() 5.5.6. mroonga_snippet() 5.5.7. mroonga_snippet_html()