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70df4c3359
When using `OR` in a where clause, a composite index can't be used. We should use a `UNION` to take advantages of it. Instead, create 2 indexes on each hashed urls and make 2 queries to find an url. It'll be faster than the previous solution.
55 lines
1.4 KiB
PHP
55 lines
1.4 KiB
PHP
<?php
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namespace Application\Migrations;
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use Doctrine\DBAL\Schema\Schema;
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use Wallabag\CoreBundle\Doctrine\WallabagMigration;
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/**
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* Added `given_url` & `hashed_given_url` field in entry table.
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*/
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class Version20190601125843 extends WallabagMigration
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{
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/**
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* @param Schema $schema
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*/
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public function up(Schema $schema)
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{
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$entryTable = $schema->getTable($this->getTable('entry'));
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if (!$entryTable->hasColumn('given_url')) {
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$entryTable->addColumn('given_url', 'text', [
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'notnull' => false,
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]);
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}
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if (!$entryTable->hasColumn('hashed_given_url')) {
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$entryTable->addColumn('hashed_given_url', 'text', [
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'length' => 40,
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'notnull' => false,
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]);
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}
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// 40 = length of sha1 field hashed_given_url
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$entryTable->addIndex(['user_id', 'hashed_given_url'], 'hashed_given_url_user_id', [], ['lengths' => [null, 40]]);
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}
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/**
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* @param Schema $schema
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*/
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public function down(Schema $schema)
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{
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$entryTable = $schema->getTable($this->getTable('entry'));
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if ($entryTable->hasColumn('given_url')) {
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$entryTable->dropColumn('given_url');
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}
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if ($entryTable->hasColumn('hashed_given_url')) {
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$entryTable->dropColumn('hashed_given_url');
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}
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$entryTable->dropIndex('hashed_given_url_user_id');
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}
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}
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