--- /dev/null
+<?php
+$drivers["clickhouse"] = "ClickHouse (alpha)";
+
+if (isset($_GET["clickhouse"])) {
+ define("DRIVER", "clickhouse");
+
+ class Min_DB {
+ var $extension = "JSON", $server_info, $errno, $_result, $error, $_url;
+ var $_db = 'default';
+
+ function rootQuery($db, $query) {
+ @ini_set('track_errors', 1); // @ - may be disabled
+ $file = @file_get_contents("$this->_url/?database=$db", false, stream_context_create(array('http' => array(
+ 'method' => 'POST',
+ 'content' => stripos($query, 'insert') === 0 ? $query : "$query FORMAT JSONCompact",
+ 'header' => 'Content-type: application/x-www-form-urlencoded',
+ 'ignore_errors' => 1, // available since PHP 5.2.10
+ ))));
+
+ if (!$file) {
+ $this->error = $php_errormsg;
+ return $file;
+ }
+ if (!preg_match('~^HTTP/[0-9.]+ 2~i', $http_response_header[0])) {
+ $this->error = $file;
+ return false;
+ }
+ $return = json_decode($file, true);
+ if ($return === null) {
+ $this->errno = json_last_error();
+ if (function_exists('json_last_error_msg')) {
+ $this->error = json_last_error_msg();
+ } else {
+ $constants = get_defined_constants(true);
+ foreach ($constants['json'] as $name => $value) {
+ if ($value == $this->errno && preg_match('~^JSON_ERROR_~', $name)) {
+ $this->error = $name;
+ break;
+ }
+ }
+ }
+ }
+ return new Min_Result($return);
+ }
+
+ function query($query) {
+ return $this->rootQuery($this->_db, $query);
+ }
+
+ function connect($server, $username, $password) {
+ preg_match('~^(https?://)?(.*)~', $server, $match);
+ $this->_url = ($match[1] ? $match[1] : "http://") . "$username:$password@$match[2]";
+ $return = $this->query('SELECT 1');
+ if ($return) {
+ //$this->server_info = $return['version']['number'];
+ }
+ return (bool) $return;
+ }
+
+ function select_db($database) {
+ $this->_db = $database;
+ return true;
+ }
+
+ function quote($string) {
+ return "'$string'";
+ }
+
+ function multi_query($query) {
+ return $this->_result = $this->query($query);
+ }
+
+ function store_result() {
+ return $this->_result;
+ }
+
+ function next_result() {
+ return false;
+ }
+
+ function result($query, $field = 0) {
+ $result = $this->query($query);
+ return $result['data'];
+ }
+ }
+
+ class Min_Result {
+ var $num_rows, $_rows, $columns, $meta, $_offset = 0;
+
+ function __construct($result) {
+ $this->num_rows = $result['rows'];
+ $this->_rows = $result['data'];
+ $this->meta = $result['meta'];
+ $this->columns = array_column($this->meta, 'name');
+ reset($this->_rows);
+ }
+
+ function fetch_assoc() {
+ $row = current($this->_rows);
+ next($this->_rows);
+ return $row === false ? false : array_combine($this->columns, $row);
+ }
+
+ function fetch_row() {
+ $row = current($this->_rows);
+ next($this->_rows);
+ return $row;
+ }
+
+ function fetch_field() {
+ $column = $this->_offset++;
+ $return = new stdClass;
+ if ($column < count($this->columns)) {
+ $return->name = $this->meta[$column]['name'];
+ $return->orgname = $return->name;
+ $return->type = $this->meta[$column]['type'];
+ }
+ return $return;
+ }
+ }
+
+
+ class Min_Driver extends Min_SQL {
+ }
+
+ function idf_escape($idf) {
+ return "`" . str_replace("`", "``", $idf) . "`";
+ }
+
+ function table($idf) {
+ return idf_escape($idf);
+ }
+
+ function explain($connection, $query) {
+ return '';
+ }
+
+ function found_rows($table_status, $where) {
+ $rows = get_vals("SELECT COUNT(*) FROM " . idf_escape($table_status["Name"]) . ($where ? " WHERE " . implode(" AND ", $where) : ""));
+ return empty($rows) ? false : $rows[0];
+ }
+
+ function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
+ $alter = array();
+ foreach ($fields as $field) {
+ if ($field[1][2] === " NULL") {
+ $field[1][1] = " Nullable({$field[1][1]})";
+ }
+ unset($field[1][2]);
+ $alter[] = ($field[1]
+ ? ($table != "" ? ($field[0] != "" ? "CHANGE " . idf_escape($field[0]) : "ADD") : " ") . " " . implode($field[1])
+ : "DROP " . idf_escape($field[0])
+ );
+ }
+ $alter = array_merge($alter, $foreign);
+ $status = ($comment !== null ? " COMMENT=" . q($comment) : "")
+ . ($engine ? " ENGINE=" . q($engine) : "")
+ . ($collation ? " COLLATE " . q($collation) : "")
+ . ($auto_increment != "" ? " AUTO_INCREMENT=$auto_increment" : "")
+ ;
+ if ($table == "") {
+ return queries("CREATE TABLE " . table($name) . " (\n" . implode(",\n", $alter) . "\n)$status$partitioning");
+ }
+ if ($table != $name) {
+ $alter[] = "RENAME TO " . table($name);
+ }
+ if ($status) {
+ $alter[] = ltrim($status);
+ }
+ return ($alter || $partitioning ? queries("ALTER TABLE " . table($table) . "\n" . implode(",\n", $alter) . $partitioning) : true);
+ }
+
+ function truncate_tables($tables) {
+ return apply_queries("TRUNCATE TABLE", $tables);
+ }
+
+ function drop_views($views) {
+ return queries("DROP VIEW " . implode(", ", array_map('table', $views)));
+ }
+
+ function drop_tables($tables) {
+ return queries("DROP TABLE " . implode(", ", array_map('table', $tables)));
+ }
+
+ function connect() {
+ global $adminer;
+ $connection = new Min_DB;
+ $credentials = $adminer->credentials();
+ if ($connection->connect($credentials[0], $credentials[1], $credentials[2])) {
+ return $connection;
+ }
+ return $connection->error;
+ }
+
+ function get_databases($flush) {
+ global $connection;
+ $result = get_rows('SHOW DATABASES');
+
+ $return = array();
+ foreach ($result as $row) {
+ $return[] = $row['name'];
+ }
+ sort($return);
+ return $return;
+ }
+
+ function limit($query, $where, $limit, $offset = 0, $separator = " ") {
+ return " $query$where" . ($limit !== null ? $separator . "LIMIT $limit" . ($offset ? ", $offset" : "") : "");
+ }
+
+ function limit1($table, $query, $where, $separator = "\n") {
+ return limit($query, $where, 1, 0, $separator);
+ }
+
+ function db_collation($db, $collations) {
+ }
+
+ function engines() {
+ return array('MergeTree');
+ }
+
+ function logged_user() {
+ global $adminer;
+ $credentials = $adminer->credentials();
+ return $credentials[1];
+ }
+
+ function tables_list() {
+ $result = get_rows('SHOW TABLES');
+ $return = array();
+ foreach ($result as $row) {
+ $return[$row['name']] = 'table';
+ }
+ ksort($return);
+ return $return;
+ }
+
+ function count_tables($databases) {
+ return array();
+ }
+
+ function table_status($name = "", $fast = false) {
+ global $connection;
+ $return = array();
+ $tables = get_rows("SELECT name, engine FROM system.tables WHERE database = '{$connection->_db}'");
+ foreach ($tables as $table) {
+ $return[$table['name']] = array(
+ 'Name' => $table['name'],
+ 'Engine' => $table['engine'],
+ );
+ if ($name === $table['name']) {
+ return $return[$table['name']];
+ }
+ }
+ return $return;
+ }
+
+ function is_view($table_status) {
+ return false;
+ }
+
+ function fk_support($table_status) {
+ return false;
+ }
+
+ function convert_field($field) {
+ }
+
+ function unconvert_field($field, $return) {
+ if (in_array($field['type'], ["Int8", "Int16", "Int32", "Int64", "UInt8", "UInt16", "UInt32", "UInt64", "Float32", "Float64"])) {
+ return "to$field[type]($return)";
+ }
+ return $return;
+ }
+
+ function fields($table) {
+ $return = array();
+ $result = get_rows("SELECT name, type, default_expression FROM system.columns WHERE " . idf_escape('table') . " = " . q($table));
+ foreach($result as $row) {
+ $type = trim($row['type']);
+ $nullable = strpos($type, 'Nullable(') === 0;
+ $return[trim($row['name'])] = array(
+ "field" => trim($row['name']),
+ "full_type" => $type,
+ "type" => $type,
+ "default" => trim($row['default_expression']),
+ "null" => $nullable,
+ "auto_increment" => '0',
+ "privileges" => array("insert" => 1, "select" => 1, "update" => 0),
+ );
+ }
+
+ return $return;
+ }
+
+ function indexes($table, $connection2 = null) {
+ return array();
+ }
+
+ function foreign_keys($table) {
+ return array();
+ }
+
+ function collations() {
+ return array();
+ }
+
+ function information_schema($db) {
+ return false;
+ }
+
+ function error() {
+ global $connection;
+ return h($connection->error);
+ }
+
+ function types() {
+ return array();
+ }
+
+ function schemas() {
+ return array();
+ }
+
+ function get_schema() {
+ return "";
+ }
+
+ function set_schema($schema) {
+ return true;
+ }
+
+ function auto_increment() {
+ return '';
+ }
+
+ function support($feature) {
+ return preg_match("~^(columns|sql|status|table)$~", $feature);
+ }
+
+ $jush = "clickhouse";
+ $types = array();
+ $structured_types = array();
+ foreach (array( //! arrays
+ lang('Numbers') => array("Int8" => 3, "Int16" => 5, "Int32" => 10, "Int64" => 19, "UInt8" => 3, "UInt16" => 5, "UInt32" => 10, "UInt64" => 20, "Float32" => 7, "Float64" => 16),
+ lang('Date and time') => array("Date" => 13, "DateTime" => 20),
+ lang('Strings') => array("String" => 0),
+ lang('Binary') => array("FixedString" => 0),
+ ) as $key => $val) {
+ $types += $val;
+ $structured_types[$key] = array_keys($val);
+ }
+ $unsigned = array();
+ $operators = array("=", "<", ">", "<=", ">=", "!=", "~", "!~", "LIKE", "LIKE %%", "IN", "IS NULL", "NOT LIKE", "NOT IN", "IS NOT NULL");
+ $functions = array();
+ $grouping = array("avg", "count", "count distinct", "max", "min", "sum");
+ $edit_functions = array();
+}
projects / adminer.git / commitdiff