[groonga-talk:331] [ANN] Mroonga 6.08

[Kentaro H. <ha...@cl...>]

Hi,

Mroonga 6.08 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/2016/08/29/mroonga-6.08.html

Changes:
   http://mroonga.org/docs/news.html#release-6.08

There are two topics in this release.

  * Limitation about the maximum number record is relaxed
  * MariaDB 10.2.1 has been supported

## Limitation about the maximum number record is relaxed

A table had the following limitations. This limitation is derived from
Groonga.

  * The maximum one key size: 4KiB
  * The maximum total size of keys: 4GiB
  * The maximum number of records: 268,435,455 (more than 268 million)

In the past, the maximum number of records is announced as 268
million.

With recent research, it turns out that there is a capability to store
more records than ever.

Here is the updated limitation about the maximum number of records:

  * No primary key table: 1,073,741,815 (2^30 - 9)
  * PRIMARY KEY or PRIMARY KEY USING BTREE table: 1,073,741,823 (2^30 - 1)
  * PRIMARY KEY USING HASH table: 536,870,912 (2^29)

Keep in mind that these limitations may vary depending on conditions.

## MariaDB 10.2.1 has been supported

In this release, MariaDB 10.2.1 which is released 4 Jul, 2016 has been
supported.

As official Mroonga packages are not provided, please see the
following instruction to install it.

  http://mroonga.org/docs/install/others.html

# Improvements

  * [rpm][centos] Supported latest MariaDB 5.5.50 on CentOS 7.

  * [rpm][centos] Supported Percona Server 5.6/5.7 on CentOS 6/7.

  * [Limitations] Updated description about table limitations. There
    is a good news that the limitation about the maximum number of
    records are relaxed. In the past, it is described as 268,435,455
    records, but it turns out that actually you can store more
    records.

  * Supported MariaDB 10.2.1.
  
# Fixes

  * Fixed compile error with GCC 6.1.1.


-- 
Kentaro Hayashi <ha...@cl...>