www.gusucode.com > PHPBB轻型PHP论坛 含中文语言包 3.1.2PHP源码程序 > PHPBB轻型PHP论坛 含中文语言包 3.1.2/mandarin_chinese_(simplified_script)_1_0_4/phpBB3/phpbb/db/migration/data/v310/postgres_fulltext_drop.php
<?php /** * * This file is part of the phpBB Forum Software package. * * @copyright (c) phpBB Limited <https://www.phpbb.com> * @license GNU General Public License, version 2 (GPL-2.0) * * For full copyright and license information, please see * the docs/CREDITS.txt file. * */ namespace phpbb\db\migration\data\v310; class postgres_fulltext_drop extends \phpbb\db\migration\migration { public function effectively_installed() { // This migration is irrelevant for all non-PostgreSQL DBMSes. return strpos($this->db->get_sql_layer(), 'postgres') === false; } static public function depends_on() { return array( '\phpbb\db\migration\data\v310\dev', ); } public function update_schema() { /* * Drop FULLTEXT indexes related to PostgreSQL fulltext search. * Doing so is equivalent to dropping the search index from the ACP. * Possibly time-consuming recreation of the search index (i.e. * FULLTEXT indexes) is left as a task to the admin to not * unnecessarily stall the upgrade process. The new search index will * then require about 40% less table space (also see PHPBB3-11040). */ return array( 'drop_keys' => array( $this->table_prefix . 'posts' => array( 'post_subject', 'post_text', 'post_content', ), ), ); } }