[groonga-talk:317] [ANN] Mroonga 6.01

[Masafumi Y. <yok...@cl...>]

Hi,

Mroonga 6.01 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.

Document:
   http://mroonga.org/docs/

How to install: Install Guide
   http://mroonga.org/docs/install.html

How to upgrade: Upgrade Guide
   http://mroonga.org/docs/upgrade.html

Blog:
   http://mroonga.org/en/blog/2016/03/29/mroonga-6.01.html

Changes:
   http://mroonga.org/docs/news.html#release-6.01

There are two topics in this release.

   * [Windows] Supported LZ4 column value compression
   * Supported fast phrase search with static indexes

#### [Windows] Supported LZ4 column value compression

LZ4 column value compression is supported Mroonga 4.07, but not on 
Windows for a long time.

In this release, Mroonga has supported LZ4 column value compression 
at last!

To enable this feature, use COMPRESS_LZ4 flag:

   content TEXT COMMENT 'flags "COLUMN_SCALAR|COMPRESS_LZ4"'

#### Supported fast phrase search with static indexes

This feature is not Mroonga's improvement. It is derived from 
Groonga, Mroonga has supported fast phrase search with static indexes 
when frequently used word and rarely used word are specified at the 
same time.

To enable this feature, set the following environment variable and 
execute offline index construction:

   GRN_INDEX_CHUNK_SPLIT_ENABLE=1

And enable the following environment variable:

   GRN_II_CURSOR_SET_MIN_ENABLE=1

This feature is disabled by default because it is not widely tested 
yet, but it is verified to improve phrase search performance in a 
test case.


Let's search by Mroonga!

--
Masafumi Yokoyama <yok...@cl...>