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26.
MySQLと PostgreSQLと 日本語全文検索 - Azure Databaseで Mroonga・PGroongaを使いたいですよね!? Powered by Rabbit 2.2.1
PGroonga:インデックス
普通のPostgreSQLの使い方
CREATE INDEX name ON texts
USING pgroonga (content);
27.
MySQLと PostgreSQLと 日本語全文検索 - Azure Databaseで Mroonga・PGroongaを使いたいですよね!? Powered by Rabbit 2.2.1
PGroonga:全文検索
専用演算子を使用
SELECT * FROM ...
WHERE
column &? 'キーワード';
28.
MySQLと PostgreSQLと 日本語全文検索 - Azure Databaseで Mroonga・PGroongaを使いたいですよね!? Powered by Rabbit 2.2.1
PGroonga:JSON
JSON内の全テキストを全文検索
CREATE TABLE logs (record jsonb);
CREATE INDEX i ON logs
USING pgroonga (record);
-- ログのどこかに「error」があればマッチ
SELECT * FROM logs
WHERE record &? 'error';
29.
MySQLと PostgreSQLと 日本語全文検索 - Azure Databaseで Mroonga・PGroongaを使いたいですよね!? Powered by Rabbit 2.2.1
PGroonga:入力補完1
検索ボックスで便利なアレ
CREATE TABLE terms
(term text, -- 候補単語
readings text[]); -- ヨミガナ
-- インデックス
CREATE INDEX i ON terms USING pgroonga
(term pgroonga.text_term_search_ops_v2,
readings pgroogna.text_array_term_search_ops_v2);