Merge pull request #10168 from nextcloud/bugfix/10163/allow-utf8mb4-on-maria-10.3-or-later
MySQL 8.0+ and MariaDB 10.3+ are large prefix and barracuda by default
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commit
1801e4e03f
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@ -34,17 +34,36 @@ class MySqlTools {
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* @return bool
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* @return bool
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*/
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*/
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public function supports4ByteCharset(IDBConnection $connection) {
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public function supports4ByteCharset(IDBConnection $connection) {
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foreach (['innodb_file_format' => 'Barracuda', 'innodb_large_prefix' => 'ON', 'innodb_file_per_table' => 'ON'] as $var => $val) {
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$variables = ['innodb_file_per_table' => 'ON'];
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if (!$this->isMariaDBWithLargePrefix($connection)) {
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$variables['innodb_file_format'] = 'Barracuda';
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$variables['innodb_large_prefix'] = 'ON';
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}
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foreach ($variables as $var => $val) {
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$result = $connection->executeQuery("SHOW VARIABLES LIKE '$var'");
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$result = $connection->executeQuery("SHOW VARIABLES LIKE '$var'");
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$rows = $result->fetch();
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$row = $result->fetch();
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$result->closeCursor();
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$result->closeCursor();
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if ($rows === false) {
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if ($row === false) {
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return false;
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return false;
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}
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}
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if (strcasecmp($rows['Value'], $val) !== 0) {
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if (strcasecmp($row['Value'], $val) !== 0) {
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return false;
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return false;
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}
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}
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}
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}
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return true;
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return true;
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}
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}
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protected function isMariaDBWithLargePrefix(IDBConnection $connection) {
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$result = $connection->executeQuery('SELECT VERSION()');
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$row = strtolower($result->fetchColumn());
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$result->closeCursor();
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if ($row === false) {
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return false;
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}
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return strpos($row, 'maria') && version_compare($row, '10.3', '>=') ||
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strpos($row, 'maria') === false && version_compare($row, '8.0', '>=');
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}
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}
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}
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