HAYASHI Kentaro
null+****@clear*****
Tue May 28 12:34:08 JST 2013
HAYASHI Kentaro 2013-05-28 12:34:08 +0900 (Tue, 28 May 2013) New Revision: d277ef6d30e81f45dabd8a1b454a06c3a4169301 https://github.com/groonga/groonga.org/commit/d277ef6d30e81f45dabd8a1b454a06c3a4169301 Message: blog en: add 3.0.4 release entry Added files: en/_posts/2013-05-29-release.textile Added: en/_posts/2013-05-29-release.textile (+118 -0) 100644 =================================================================== --- /dev/null +++ en/_posts/2013-05-29-release.textile 2013-05-28 12:34:08 +0900 (59d5242) @@ -0,0 +1,118 @@ +--- +layout: post.en +title: Groonga 3.0.4 has been released +description: Groonga 3.0.4 has been released! +published: false +--- + + +h2. Groonga 3.0.4 has been released + +"Groonga 3.0.4":/docs/news.html#release-3-0-4 has been released! + +How to install: "Install":/docs/install.html + +There are three topics for this release. + +* Supported multiple index section in match_columns +* Supported tokenize command experimentally +* Supported Debian 8.0 (jessie) + +h3. Supported multiple index section in match_columns + +In this release, we began to support multiple index section in match_columns. + +Here is the sample schema: + +<pre> +table_create Memos TABLE_NO_KEY +column_create Memos title COLUMN_SCALAR ShortText +column_create Memos content COLUMN_SCALAR ShortText + +table_create Lexicon TABLE_PAT_KEY ShortText --default_tokenizer TokenBigram +column_create Lexicon title_index COLUMN_INDEX|WITH_POSITION|WITH_SECTION Memos title +column_create Lexicon content_index COLUMN_INDEX|WITH_POSITION|WITH_SECTION Memos content +</pre> + +In the previous release, you need to execute following query if you want to use column index of title with weight. + +<pre> +select Memos \ + --match_columns "Lexicon.title_index * 10 || Lexicon.content_index" \ + --query rroonga --output_columns "title, content, _score" +</pre> + +In this release, you can use almost same thing for multiple column index. To use this feature, you need change schema a bit. + +<pre> +table_create Lexicon TABLE_PAT_KEY ShortText --default_tokenizer TokenBigram +column_create Lexicon memo_index COLUMN_INDEX|WITH_POSITION|WITH_SECTION Memos title,content +</pre> + +Then specify memo_index.(COLUMN_NAME) in the query. Here is the revised query using multiple column index: + +<pre> +select Memos \ + --match_columns "Lexicon.memo_index.title * 10 || Lexicon.memo_index.content" \ + --query rroonga \ + --output_columns "title, content, _score" +</pre> + +There are many case which you want to apply multiple tokenizer or normalizer for each column. + +If you specify just column name, there is a case that multiple index is used and unwanted search results returns. + +In this release, you can specify specific column which is a member of multiple column index. + +h3. Supported tokenize command experimentally + +In this release, we began to support tokenize command experimentally. + +There is a normalize command to confirm behaviour of normalizer, on the other hand, there is no way to confirm behaviour of tokenizer. + +In this release, you can confirm both of normalizer and tokenizer behaviour now. + +Here is the syntax of tokenize command: + +<pre> +tokenize tokenizer string [normalizer] [flag] +</pre> + +Here is a sample of tokenize command: + +<pre> +> tokenize TokenBigram "groonga3.0.4" +[ + [0,1369290009.77065,0.000670194625854492], + [ + {"value":"gr","position":0}, + {"value":"ro","position":1}, + {"value":"oo","position":2}, + {"value":"on","position":3}, + {"value":"ng","position":4}, + {"value":"ga","position":5}, + {"value":"a3","position":6}, + {"value":"3.","position":7}, + {"value":".0","position":8}, + {"value":"0.","position":9}, + {"value":".4","position":10}, + {"value":"4","position":11} + ] +] +</pre> + +See the following "documentation":http://groonga.org/docs/reference/commands/tokenize.html about details. + +h3. Supported Debian 8.0 (jessie) + +In this release, we began to support Debian 8.0 (jessie). + +See install documentation about "jessie":http://groonga.org/docs/install/debian.html#jessie + +Note that squeeze support will be discontinued for a while. + +h3. Conclusion + +See "Release 3.0.4 2013/05/29":/docs/news.html#release-3-0-4 about detailed changes since 3.0.3. + +Let's search by groonga! -------------- next part -------------- HTML����������������������������...ダウンロード
