Kouhei Sutou
null+****@clear*****
Fri Mar 11 17:37:54 JST 2016
Kouhei Sutou 2016-03-11 17:37:54 +0900 (Fri, 11 Mar 2016) New Revision: 097ab85341bd28a9fa23152ab49ab8ed581b3b7d https://github.com/groonga/groonga/commit/097ab85341bd28a9fa23152ab49ab8ed581b3b7d Message: doc: document KEY_LARGE Added files: doc/source/example/reference/commands/table_create/large_data_store_table.log Modified files: doc/source/reference/commands/table_create.rst Added: doc/source/example/reference/commands/table_create/large_data_store_table.log (+4 -0) 100644 =================================================================== --- /dev/null +++ doc/source/example/reference/commands/table_create/large_data_store_table.log 2016-03-11 17:37:54 +0900 (1fd6b48) @@ -0,0 +1,4 @@ +Execution example:: + + table_create Paths TABLE_HASH_KEY|KEY_LARGE ShortText + # [[0, 1337566253.89858, 0.000355720520019531], true] Modified: doc/source/reference/commands/table_create.rst (+25 -0) =================================================================== --- doc/source/reference/commands/table_create.rst 2016-03-11 16:38:18 +0900 (e2b6cf5) +++ doc/source/reference/commands/table_create.rst 2016-03-11 17:37:54 +0900 (bef513f) @@ -60,6 +60,28 @@ If your records are searched by key or referenced by one or more columns, ``TABLE_NO_KEY`` type isn't suitable. Lexicon for fulltext search is the case. +Create large data store table +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +If you want to store many large keys, your table can't store them. If +total key data is larger than 4GiB, you can't store all key data into +your table by default. + +You can expand the maximum total key size to 1TiB from 4GiB by +``KEY_LARGE`` flag. ``KEY_LARGE`` flag can be used with only +``TABLE_HASH_KEY``. You can't use ``KEY_LARGE`` flag with +``TABLE_NO_KEY``, ``TABLE_PAT_KEY`` nor ``TABLE_DAT_KEY``. + +Here is an example to create a table that can store many large keys: + +.. groonga-command +.. include:: ../../example/reference/commands/table_create/large_data_store_table.log +.. table_create Paths TABLE_HASH_KEY|KEY_LARGE ShortText + +The ``table_create`` command creates a table that is named ``Paths`` +and is ``TABLE_HASH_KEY`` type. The ``Paths`` table can store many +large keys. + Create lexicon table ^^^^^^^^^^^^^^^^^^^^ @@ -203,6 +225,9 @@ Here are available flags: - Double array trie. See also :ref:`table-dat-key`. * - ``KEY_WITH_SIS`` - Enable Semi Infinite String. Require ``TABLE_PAT_KEY``. + * - ``KEY_LARGE`` + - Expand the maximum total key size to 1TiB from 4GiB. Require + ``TABLE_HASH_KEY``. .. note:: Since Groonga 2.1.0 ``KEY_NORMALIZE`` flag is deprecated. Use -------------- next part -------------- HTML����������������������������...下载
