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ClickHouse: Check for allow_url_fopen
This commit is contained in:
Jakub Vrana
@@ -6,130 +6,131 @@ add_driver("clickhouse", "ClickHouse (alpha)");
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if (isset($_GET["clickhouse"])) {
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define("DRIVER", "clickhouse");
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class Db {
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var $extension = "JSON", $server_info, $errno, $_result, $error, $_url;
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var $_db = 'default';
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if (ini_bool('allow_url_fopen')) {
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class Db {
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var $extension = "JSON", $server_info, $errno, $_result, $error, $_url;
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var $_db = 'default';
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function rootQuery($db, $query) {
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$file = @file_get_contents("$this->_url/?database=$db", false, stream_context_create(array('http' => array(
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'method' => 'POST',
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'content' => $this->isQuerySelectLike($query) ? "$query FORMAT JSONCompact" : $query,
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'header' => 'Content-type: application/x-www-form-urlencoded',
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'ignore_errors' => 1,
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'follow_location' => 0,
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'max_redirects' => 0,
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))));
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function rootQuery($db, $query) {
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$file = @file_get_contents("$this->_url/?database=$db", false, stream_context_create(array('http' => array(
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'method' => 'POST',
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'content' => $this->isQuerySelectLike($query) ? "$query FORMAT JSONCompact" : $query,
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'header' => 'Content-type: application/x-www-form-urlencoded',
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'ignore_errors' => 1,
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'follow_location' => 0,
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'max_redirects' => 0,
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))));
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if ($file === false || !preg_match('~^HTTP/[0-9.]+ 2~i', $http_response_header[0])) {
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$this->error = lang('Invalid credentials.');
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return false;
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}
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$return = json_decode($file, true);
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if ($return === null) {
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if (!$this->isQuerySelectLike($query) && $file === '') {
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return true;
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if ($file === false || !preg_match('~^HTTP/[0-9.]+ 2~i', $http_response_header[0])) {
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$this->error = lang('Invalid credentials.');
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return false;
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}
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$return = json_decode($file, true);
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if ($return === null) {
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if (!$this->isQuerySelectLike($query) && $file === '') {
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return true;
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}
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$this->errno = json_last_error();
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if (function_exists('json_last_error_msg')) {
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$this->error = json_last_error_msg();
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} else {
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$constants = get_defined_constants(true);
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foreach ($constants['json'] as $name => $value) {
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if ($value == $this->errno && preg_match('~^JSON_ERROR_~', $name)) {
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$this->error = $name;
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break;
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$this->errno = json_last_error();
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if (function_exists('json_last_error_msg')) {
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$this->error = json_last_error_msg();
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} else {
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$constants = get_defined_constants(true);
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foreach ($constants['json'] as $name => $value) {
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if ($value == $this->errno && preg_match('~^JSON_ERROR_~', $name)) {
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$this->error = $name;
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break;
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}
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}
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}
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}
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return new Result($return);
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}
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function isQuerySelectLike($query) {
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return (bool) preg_match('~^(select|show)~i', $query);
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}
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function query($query) {
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return $this->rootQuery($this->_db, $query);
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}
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function connect($server, $username, $password) {
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preg_match('~^(https?://)?(.*)~', $server, $match);
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$this->_url = ($match[1] ? $match[1] : "http://") . urlencode($username) . ":" . urlencode($password) . "@$match[2]";
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$return = $this->query('SELECT 1');
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return (bool) $return;
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}
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function select_db($database) {
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$this->_db = $database;
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return true;
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}
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function quote($string) {
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return "'" . addcslashes($string, "\\'") . "'";
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}
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function multi_query($query) {
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return $this->_result = $this->query($query);
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}
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function store_result() {
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return $this->_result;
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}
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function next_result() {
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return false;
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}
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function result($query, $field = 0) {
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$result = $this->query($query);
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return $result['data'];
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}
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return new Result($return);
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}
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function isQuerySelectLike($query) {
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return (bool) preg_match('~^(select|show)~i', $query);
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}
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class Result {
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var $num_rows, $_rows, $columns, $meta, $_offset = 0;
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function query($query) {
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return $this->rootQuery($this->_db, $query);
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}
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function connect($server, $username, $password) {
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preg_match('~^(https?://)?(.*)~', $server, $match);
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$this->_url = ($match[1] ? $match[1] : "http://") . urlencode($username) . ":" . urlencode($password) . "@$match[2]";
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$return = $this->query('SELECT 1');
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return (bool) $return;
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}
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function select_db($database) {
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$this->_db = $database;
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return true;
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}
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function quote($string) {
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return "'" . addcslashes($string, "\\'") . "'";
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}
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function multi_query($query) {
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return $this->_result = $this->query($query);
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}
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function store_result() {
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return $this->_result;
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}
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function next_result() {
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return false;
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}
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function result($query, $field = 0) {
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$result = $this->query($query);
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return $result['data'];
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}
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}
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class Result {
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var $num_rows, $_rows, $columns, $meta, $_offset = 0;
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function __construct($result) {
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foreach ($result['data'] as $item) {
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$row = array();
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foreach ($item as $key => $val) {
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$row[$key] = is_scalar($val) ? $val : json_encode($val, 256); // 256 - JSON_UNESCAPED_UNICODE
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function __construct($result) {
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foreach ($result['data'] as $item) {
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$row = array();
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foreach ($item as $key => $val) {
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$row[$key] = is_scalar($val) ? $val : json_encode($val, 256); // 256 - JSON_UNESCAPED_UNICODE
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}
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$this->_rows[] = $row;
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}
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$this->_rows[] = $row;
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$this->num_rows = $result['rows'];
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$this->meta = $result['meta'];
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$this->columns = array_column($this->meta, 'name');
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reset($this->_rows);
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}
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$this->num_rows = $result['rows'];
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$this->meta = $result['meta'];
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$this->columns = array_column($this->meta, 'name');
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reset($this->_rows);
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}
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function fetch_assoc() {
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$row = current($this->_rows);
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next($this->_rows);
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return $row === false ? false : array_combine($this->columns, $row);
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}
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function fetch_row() {
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$row = current($this->_rows);
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next($this->_rows);
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return $row;
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}
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function fetch_field() {
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$column = $this->_offset++;
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$return = new \stdClass;
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if ($column < count($this->columns)) {
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$return->name = $this->meta[$column]['name'];
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$return->orgname = $return->name;
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$return->type = $this->meta[$column]['type'];
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function fetch_assoc() {
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$row = current($this->_rows);
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next($this->_rows);
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return $row === false ? false : array_combine($this->columns, $row);
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}
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function fetch_row() {
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$row = current($this->_rows);
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next($this->_rows);
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return $row;
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}
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function fetch_field() {
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$column = $this->_offset++;
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$return = new \stdClass;
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if ($column < count($this->columns)) {
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$return->name = $this->meta[$column]['name'];
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$return->orgname = $return->name;
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$return->type = $this->meta[$column]['type'];
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}
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return $return;
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}
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return $return;
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}
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}
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class Driver extends SqlDriver {
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static $possibleDrivers = array("allow_url_fopen");
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static $jush = "clickhouse";
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