Mroonga blog


Mroonga 10.11 has been released!

Mroonga is a MySQL storage engine that supports fast fulltext search and geolocation search. It is CJK ready. It uses Groonga as a storage and fulltext search engine.

Mroonga 10.11 has been released!


The main changes are as follows.

  • Added support for lexicon_flags parameter.

    • We can add KEY_LARGE flag to a USING HASH (non full-text search index) index by this parameter.
  • CentOS Added support for MySQL 5.6.51, 5.7.33, and 8.0.23.

    • There are below restrictions in the MySQL8 package.

      • [Wrapper mode] Wrapper mode is not supported yet.
      • [Storage mode] JSON data type is not supported yet.
  • Optimizations Fixed a bug that the fast order limit optimization doen’t work when “WHERE COLUMN IN (SUBQUERY)” exists.

    • Fixed a bug that we can’t use in place ALTER TABLE when we modify the data type of a column that has any indexes.
    • This bug occur when we execute ALTER TABLE in ALGORITHM=INPLACE. Therefore, this bug doesn’t occur when we use ALTER TABLE in ALGORITHM=COPY.


See Release 10.11 - 2021-01-29 about detailed changes since 10.11.

Let's search by Mroonga!