From: jakubvrana <jakubvrana@7c3ca157-0c34-0410-bff1-cbf682f78f5c>
Date: Fri, 8 May 2009 05:43:36 +0000 (+0000)
Subject: Separate MySQL functions
X-Git-Tag: v3.0.0~919
X-Git-Url: https://git.joonet.de/?a=commitdiff_plain;h=812f35080543d68ab300a8471bc7e75ade6c8545;p=adminer.git

Separate MySQL functions

git-svn-id: https://adminer.svn.sourceforge.net/svnroot/adminer/trunk@603 7c3ca157-0c34-0410-bff1-cbf682f78f5c
---

diff --git a/abstraction.inc.php b/abstraction.inc.php
deleted file mode 100644
index 40be40f6..00000000
--- a/abstraction.inc.php
+++ /dev/null
@@ -1,264 +0,0 @@
-<?php
-if (extension_loaded("mysqli")) {
-	class Min_MySQLi extends MySQLi {
-		var $extension = "MySQLi";
-		
-		function Min_MySQLi() {
-			$this->init();
-		}
-		
-		function connect($server, $username, $password) {
-			list($host, $port) = explode(":", $server, 2);
-			return @$this->real_connect(
-				(strlen($server) ? $host : ini_get("mysqli.default_host")),
-				(strlen("$server$username") ? $username : ini_get("mysqli.default_user")),
-				(strlen("$server$username$password") ? $password : ini_get("mysqli.default_pw")),
-				null,
-				(strlen($port) ? $port : ini_get("mysqli.default_port"))
-			);
-		}
-		
-		function result($result, $field = 0) {
-			if (!$result) {
-				return false;
-			}
-			$row = $result->_result->fetch_array();
-			return $row[$field];
-		}
-		
-		// minification compatibility start
-		function select_db($database) {
-			return parent::select_db($database);
-		}
-		
-		function query($query) {
-			$result = parent::query($query);
-			return (is_object($result) ? new Min_MySQLiResult($result) : $result);
-		}
-		
-		function multi_query($query) {
-			return parent::multi_query($query);
-		}
-		
-		function store_result() {
-			$result = parent::store_result();
-			return (is_object($result) ? new Min_MySQLiResult($result) : $result);
-		}
-		
-		function next_result() {
-			return parent::next_result();
-		}
-		
-		function escape_string($string) {
-			return parent::escape_string($string);
-		}
-	}
-	
-	class Min_MySQLiResult {
-		var $_result, $num_rows;
-		
-		function __construct($result) {
-			$this->_result = $result;
-			$this->num_rows = $result->num_rows;
-		}
-		
-		function fetch_assoc() {
-			return $this->_result->fetch_assoc();
-		}
-		
-		function fetch_row() {
-			return $this->_result->fetch_row();
-		}
-		
-		function fetch_field() {
-			return $this->_result->fetch_field();
-		}
-		
-		function free() {
-			return $this->_result->free();
-		}
-		// minification compatibility end
-	}
-	
-	$dbh = new Min_MySQLi;
-
-} elseif (extension_loaded("mysql")) {
-	class Min_MySQL {
-		var $extension = "MySQL", $_link, $_result, $server_info, $affected_rows, $error;
-		
-		function connect($server, $username, $password) {
-			$this->_link = @mysql_connect(
-				(strlen($server) ? $server : ini_get("mysql.default_host")),
-				(strlen("$server$username") ? $username : ini_get("mysql.default_user")),
-				(strlen("$server$username$password") ? $password : ini_get("mysql.default_password")),
-				131072 // CLIENT_MULTI_RESULTS for CALL
-			);
-			if ($this->_link) {
-				$this->server_info = mysql_get_server_info($this->_link);
-			}
-			return (bool) $this->_link;
-		}
-		
-		function select_db($database) {
-			return mysql_select_db($database, $this->_link);
-		}
-		
-		function query($query) {
-			$result = mysql_query($query, $this->_link);
-			if (!$result) {
-				$this->error = mysql_error($this->_link);
-				return false;
-			} elseif ($result === true) {
-				$this->affected_rows = mysql_affected_rows($this->_link);
-				return true;
-			}
-			return new Min_MySQLResult($result);
-		}
-		
-		function multi_query($query) {
-			return $this->_result = $this->query($query);
-		}
-		
-		function store_result() {
-			return $this->_result;
-		}
-		
-		function next_result() {
-			return false;
-		}
-		
-		function result($result, $field = 0) {
-			if (!$result) {
-				return false;
-			}
-			return mysql_result($result->_result, 0, $field);
-		}
-		
-		function escape_string($string) {
-			return mysql_real_escape_string($string, $this->_link);
-		}
-	}
-	
-	class Min_MySQLResult {
-		var $_result, $_offset = 0, $num_rows;
-		
-		function Min_MySQLResult($result) {
-			$this->_result = $result;
-			$this->num_rows = mysql_num_rows($result);
-		}
-		
-		function fetch_assoc() {
-			return mysql_fetch_assoc($this->_result);
-		}
-		
-		function fetch_row() {
-			return mysql_fetch_row($this->_result);
-		}
-		
-		function fetch_field() {
-			$row = mysql_fetch_field($this->_result, $this->_offset++);
-			$row->orgtable = $row->table;
-			$row->orgname = $row->name;
-			$row->charsetnr = ($row->blob ? 63 : 0);
-			return $row;
-		}
-		
-		function free() {
-			return mysql_free_result($this->_result);
-		}
-	}
-	
-	$dbh = new Min_MySQL;
-
-} elseif (extension_loaded("pdo_mysql")) {
-	class Min_PDO_MySQL extends PDO {
-		var $extension = "PDO_MySQL", $_result, $server_info, $affected_rows, $error;
-		
-		function __construct() {
-		}
-		
-		function connect($server, $username, $password) {
-			set_exception_handler('auth_error'); // try/catch is not compatible with PHP 4
-			parent::__construct("mysql:host=" . str_replace(":", ";port=", $server), $username, $password);
-			restore_exception_handler();
-			$this->setAttribute(13, array('Min_PDOStatement')); // PDO::ATTR_STATEMENT_CLASS
-			$this->server_info = $this->result($this->query("SELECT VERSION()"));
-			return true;
-		}
-		
-		function select_db($database) {
-			return $this->query("USE " . idf_escape($database));
-		}
-		
-		function query($query) {
-			$result = parent::query($query);
-			if (!$result) {
-				$errorInfo = $this->errorInfo();
-				$this->error = $errorInfo[2];
-				return false;
-			}
-			$this->_result = $result;
-			if (!$result->columnCount()) {
-				$this->affected_rows = $result->rowCount();
-				return true;
-			}
-			$result->num_rows = $result->rowCount();
-			return $result;
-		}
-		
-		function multi_query($query) {
-			return $this->query($query);
-		}
-		
-		function store_result() {
-			return ($this->_result->columnCount() ? $this->_result : true);
-		}
-		
-		function next_result() {
-			return $this->_result->nextRowset();
-		}
-		
-		function result($result, $field = 0) {
-			if (!$result) {
-				return false;
-			}
-			$row = $result->fetch();
-			return $row[$field];
-		}
-		
-		function escape_string($string) {
-			return substr($this->quote($string), 1, -1);
-		}
-	}
-	
-	class Min_PDOStatement extends PDOStatement {
-		var $_offset = 0, $num_rows;
-		
-		function fetch_assoc() {
-			return $this->fetch(2); // PDO::FETCH_ASSOC
-		}
-		
-		function fetch_row() {
-			return $this->fetch(3); // PDO::FETCH_NUM
-		}
-		
-		function fetch_field() {
-			$row = (object) $this->getColumnMeta($this->_offset++);
-			$row->orgtable = $row->table;
-			$row->orgname = $row->name;
-			$row->charsetnr = (in_array("blob", $row->flags) ? 63 : 0);
-			return $row;
-		}
-		
-		function free() {
-			// $this->__destruct() is not callable
-		}
-	}
-	
-	$dbh = new Min_PDO_MySQL;
-
-} else {
-	page_header(lang('No MySQL extension'), lang('None of supported PHP extensions (%s) are available.', 'MySQLi, MySQL, PDO_MySQL'), null);
-	page_footer("auth");
-	exit;
-}
diff --git a/functions.inc.php b/functions.inc.php
index 31fa4b8f..19ab251d 100644
--- a/functions.inc.php
+++ b/functions.inc.php
@@ -41,15 +41,6 @@ function get_vals($query) {
 	return $return;
 }
 
-function get_databases() {
-	$return = &$_SESSION["databases"][$_GET["server"]];
-	if (!isset($return)) {
-		flush();
-		$return = get_vals("SHOW DATABASES");
-	}
-	return $return;
-}
-
 function table_status($table) {
 	global $dbh;
 	$result = $dbh->query("SHOW TABLE STATUS LIKE '" . $dbh->escape_string(addcslashes($table, "%_")) . "'");
@@ -58,77 +49,6 @@ function table_status($table) {
 	return $return;
 }
 
-function fields($table) {
-	global $dbh;
-	$return = array();
-	$result = $dbh->query("SHOW FULL COLUMNS FROM " . idf_escape($table));
-	if ($result) {
-		while ($row = $result->fetch_assoc()) {
-			preg_match('~^([^( ]+)(?:\\((.+)\\))?( unsigned)?( zerofill)?$~', $row["Type"], $match);
-			$return[$row["Field"]] = array(
-				"field" => $row["Field"],
-				"type" => $match[1],
-				"length" => $match[2],
-				"unsigned" => ltrim($match[3] . $match[4]),
-				"default" => (strlen($row["Default"]) || ereg("char", $match[1]) ? $row["Default"] : null),
-				"null" => ($row["Null"] == "YES"),
-				"auto_increment" => ($row["Extra"] == "auto_increment"),
-				"collation" => $row["Collation"],
-				"privileges" => array_flip(explode(",", $row["Privileges"])),
-				"comment" => $row["Comment"],
-				"primary" => ($row["Key"] == "PRI"),
-			);
-		}
-		$result->free();
-	}
-	return $return;
-}
-
-function indexes($table) {
-	global $dbh;
-	$return = array();
-	$result = $dbh->query("SHOW INDEX FROM " . idf_escape($table));
-	if ($result) {
-		while ($row = $result->fetch_assoc()) {
-			$return[$row["Key_name"]]["type"] = ($row["Key_name"] == "PRIMARY" ? "PRIMARY" : ($row["Index_type"] == "FULLTEXT" ? "FULLTEXT" : ($row["Non_unique"] ? "INDEX" : "UNIQUE")));
-			$return[$row["Key_name"]]["columns"][$row["Seq_in_index"]] = $row["Column_name"];
-			$return[$row["Key_name"]]["lengths"][$row["Seq_in_index"]] = $row["Sub_part"];
-		}
-		$result->free();
-	}
-	return $return;
-}
-
-function foreign_keys($table) {
-	global $dbh, $on_actions;
-	static $pattern = '(?:[^`]+|``)+';
-	$return = array();
-	$result = $dbh->query("SHOW CREATE TABLE " . idf_escape($table));
-	if ($result) {
-		$create_table = $dbh->result($result, 1);
-		$result->free();
-		preg_match_all("~CONSTRAINT `($pattern)` FOREIGN KEY \\(((?:`$pattern`,? ?)+)\\) REFERENCES `($pattern)`(?:\\.`($pattern)`)? \\(((?:`$pattern`,? ?)+)\\)(?: ON DELETE (" . implode("|", $on_actions) . "))?(?: ON UPDATE (" . implode("|", $on_actions) . "))?~", $create_table, $matches, PREG_SET_ORDER);
-		foreach ($matches as $match) {
-			preg_match_all("~`($pattern)`~", $match[2], $source);
-			preg_match_all("~`($pattern)`~", $match[5], $target);
-			$return[$match[1]] = array(
-				"db" => idf_unescape(strlen($match[4]) ? $match[3] : $match[4]),
-				"table" => idf_unescape(strlen($match[4]) ? $match[4] : $match[3]),
-				"source" => array_map('idf_unescape', $source[1]),
-				"target" => array_map('idf_unescape', $target[1]),
-				"on_delete" => $match[6],
-				"on_update" => $match[7],
-			);
-		}
-	}
-	return $return;
-}
-
-function view($name) {
-	global $dbh;
-	return array("select" => preg_replace('~^(?:[^`]+|`[^`]*`)* AS ~U', '', $dbh->result($dbh->query("SHOW CREATE VIEW " . idf_escape($name)), 1)));
-}
-
 function unique_idf($row, $indexes) {
 	foreach ($indexes as $index) {
 		if ($index["type"] == "PRIMARY" || $index["type"] == "UNIQUE") {
@@ -168,21 +88,6 @@ function process_length($length) {
 	return (preg_match("~^\\s*(?:$enum_length)(?:\\s*,\\s*(?:$enum_length))*\\s*\$~", $length) && preg_match_all("~$enum_length~", $length, $matches) ? implode(",", $matches[0]) : preg_replace('~[^0-9,+-]~', '', $length));
 }
 
-function collations() {
-	global $dbh;
-	$return = array();
-	$result = $dbh->query("SHOW COLLATION");
-	while ($row = $result->fetch_assoc()) {
-		if ($row["Default"] && $return[$row["Charset"]]) {
-			array_unshift($return[$row["Charset"]], $row["Collation"]);
-		} else {
-			$return[$row["Charset"]][] = $row["Collation"];
-		}
-	}
-	$result->free();
-	return $return;
-}
-
 function redirect($location, $message = null) {
 	if (isset($message)) {
 		$_SESSION["messages"][] = $message;
@@ -322,12 +227,6 @@ function shorten_utf8($string, $length) {
 	return nl2br(htmlspecialchars($match[1])) . ($match[2] ? "<em>...</em>" : "");
 }
 
-function table_comment(&$row) {
-	if ($row["Engine"] == "InnoDB") {
-		$row["Comment"] = preg_replace('~(?:(.+); )?InnoDB free: .*~', '\\1', $row["Comment"]);
-	}
-}
-
 function hidden_fields($process, $ignore = array()) {
 	while (list($key, $val) = each($process)) {
 		if (is_array($val)) {
diff --git a/index.php b/index.php
index b49063b7..8d2f3920 100644
--- a/index.php
+++ b/index.php
@@ -49,8 +49,8 @@ $SELF = preg_replace('~^[^?]*/([^?]*).*~', '\\1?', $_SERVER["REQUEST_URI"]) . (s
 include "./functions.inc.php";
 include "./lang.inc.php";
 include "./lang/$LANG.inc.php";
+include "./mysql.inc.php";
 include "./design.inc.php";
-include "./abstraction.inc.php";
 include "./auth.inc.php";
 include "./connect.inc.php";
 include "./editing.inc.php";
@@ -60,17 +60,6 @@ if (isset($_GET["download"])) {
 	include "./download.inc.php";
 } else { // outputs footer
 	$on_actions = array("RESTRICT", "CASCADE", "SET NULL", "NO ACTION");
-	$types = array(
-		"tinyint" => 3, "smallint" => 5, "mediumint" => 8, "int" => 10, "bigint" => 20,
-		"float" => 12, "double" => 21, "decimal" => 66,
-		"date" => 10, "datetime" => 19, "timestamp" => 19, "time" => 10, "year" => 4,
-		"char" => 255, "varchar" => 65535,
-		"binary" => 255, "varbinary" => 65535,
-		"tinytext" => 255, "text" => 65535, "mediumtext" => 16777215, "longtext" => 4294967295,
-		"tinyblob" => 255, "blob" => 65535, "mediumblob" => 16777215, "longblob" => 4294967295,
-		"enum" => 65535, "set" => 64,
-	);
-	$unsigned = array("", "unsigned", "zerofill", "unsigned zerofill");
 	$enum_length = '\'(?:\'\'|[^\'\\\\]+|\\\\.)*\'|"(?:""|[^"\\\\]+|\\\\.)*"';
 	$inout = array("IN", "OUT", "INOUT");
 	$confirm = " onclick=\"return confirm('" . lang('Are you sure?') . "');\"";
diff --git a/mysql.inc.php b/mysql.inc.php
new file mode 100644
index 00000000..b8bee319
--- /dev/null
+++ b/mysql.inc.php
@@ -0,0 +1,377 @@
+<?php
+if (extension_loaded("mysqli")) {
+	class Min_MySQLi extends MySQLi {
+		var $extension = "MySQLi";
+		
+		function Min_MySQLi() {
+			$this->init();
+		}
+		
+		function connect($server, $username, $password) {
+			list($host, $port) = explode(":", $server, 2);
+			return @$this->real_connect(
+				(strlen($server) ? $host : ini_get("mysqli.default_host")),
+				(strlen("$server$username") ? $username : ini_get("mysqli.default_user")),
+				(strlen("$server$username$password") ? $password : ini_get("mysqli.default_pw")),
+				null,
+				(strlen($port) ? $port : ini_get("mysqli.default_port"))
+			);
+		}
+		
+		function result($result, $field = 0) {
+			if (!$result) {
+				return false;
+			}
+			$row = $result->_result->fetch_array();
+			return $row[$field];
+		}
+		
+		// minification compatibility start
+		function select_db($database) {
+			return parent::select_db($database);
+		}
+		
+		function query($query) {
+			$result = parent::query($query);
+			return (is_object($result) ? new Min_MySQLiResult($result) : $result);
+		}
+		
+		function multi_query($query) {
+			return parent::multi_query($query);
+		}
+		
+		function store_result() {
+			$result = parent::store_result();
+			return (is_object($result) ? new Min_MySQLiResult($result) : $result);
+		}
+		
+		function next_result() {
+			return parent::next_result();
+		}
+		
+		function escape_string($string) {
+			return parent::escape_string($string);
+		}
+	}
+	
+	class Min_MySQLiResult {
+		var $_result, $num_rows;
+		
+		function __construct($result) {
+			$this->_result = $result;
+			$this->num_rows = $result->num_rows;
+		}
+		
+		function fetch_assoc() {
+			return $this->_result->fetch_assoc();
+		}
+		
+		function fetch_row() {
+			return $this->_result->fetch_row();
+		}
+		
+		function fetch_field() {
+			return $this->_result->fetch_field();
+		}
+		
+		function free() {
+			return $this->_result->free();
+		}
+		// minification compatibility end
+	}
+	
+	$dbh = new Min_MySQLi;
+
+} elseif (extension_loaded("mysql")) {
+	class Min_MySQL {
+		var $extension = "MySQL", $_link, $_result, $server_info, $affected_rows, $error;
+		
+		function connect($server, $username, $password) {
+			$this->_link = @mysql_connect(
+				(strlen($server) ? $server : ini_get("mysql.default_host")),
+				(strlen("$server$username") ? $username : ini_get("mysql.default_user")),
+				(strlen("$server$username$password") ? $password : ini_get("mysql.default_password")),
+				131072 // CLIENT_MULTI_RESULTS for CALL
+			);
+			if ($this->_link) {
+				$this->server_info = mysql_get_server_info($this->_link);
+			}
+			return (bool) $this->_link;
+		}
+		
+		function select_db($database) {
+			return mysql_select_db($database, $this->_link);
+		}
+		
+		function query($query) {
+			$result = mysql_query($query, $this->_link);
+			if (!$result) {
+				$this->error = mysql_error($this->_link);
+				return false;
+			} elseif ($result === true) {
+				$this->affected_rows = mysql_affected_rows($this->_link);
+				return true;
+			}
+			return new Min_MySQLResult($result);
+		}
+		
+		function multi_query($query) {
+			return $this->_result = $this->query($query);
+		}
+		
+		function store_result() {
+			return $this->_result;
+		}
+		
+		function next_result() {
+			return false;
+		}
+		
+		function result($result, $field = 0) {
+			if (!$result) {
+				return false;
+			}
+			return mysql_result($result->_result, 0, $field);
+		}
+		
+		function escape_string($string) {
+			return mysql_real_escape_string($string, $this->_link);
+		}
+	}
+	
+	class Min_MySQLResult {
+		var $_result, $_offset = 0, $num_rows;
+		
+		function Min_MySQLResult($result) {
+			$this->_result = $result;
+			$this->num_rows = mysql_num_rows($result);
+		}
+		
+		function fetch_assoc() {
+			return mysql_fetch_assoc($this->_result);
+		}
+		
+		function fetch_row() {
+			return mysql_fetch_row($this->_result);
+		}
+		
+		function fetch_field() {
+			$row = mysql_fetch_field($this->_result, $this->_offset++);
+			$row->orgtable = $row->table;
+			$row->orgname = $row->name;
+			$row->charsetnr = ($row->blob ? 63 : 0);
+			return $row;
+		}
+		
+		function free() {
+			return mysql_free_result($this->_result);
+		}
+	}
+	
+	$dbh = new Min_MySQL;
+
+} elseif (extension_loaded("pdo_mysql")) {
+	class Min_PDO_MySQL extends PDO {
+		var $extension = "PDO_MySQL", $_result, $server_info, $affected_rows, $error;
+		
+		function __construct() {
+		}
+		
+		function connect($server, $username, $password) {
+			set_exception_handler('auth_error'); // try/catch is not compatible with PHP 4
+			parent::__construct("mysql:host=" . str_replace(":", ";port=", $server), $username, $password);
+			restore_exception_handler();
+			$this->setAttribute(13, array('Min_PDOStatement')); // PDO::ATTR_STATEMENT_CLASS
+			$this->server_info = $this->result($this->query("SELECT VERSION()"));
+			return true;
+		}
+		
+		function select_db($database) {
+			return $this->query("USE " . idf_escape($database));
+		}
+		
+		function query($query) {
+			$result = parent::query($query);
+			if (!$result) {
+				$errorInfo = $this->errorInfo();
+				$this->error = $errorInfo[2];
+				return false;
+			}
+			$this->_result = $result;
+			if (!$result->columnCount()) {
+				$this->affected_rows = $result->rowCount();
+				return true;
+			}
+			$result->num_rows = $result->rowCount();
+			return $result;
+		}
+		
+		function multi_query($query) {
+			return $this->query($query);
+		}
+		
+		function store_result() {
+			return ($this->_result->columnCount() ? $this->_result : true);
+		}
+		
+		function next_result() {
+			return $this->_result->nextRowset();
+		}
+		
+		function result($result, $field = 0) {
+			if (!$result) {
+				return false;
+			}
+			$row = $result->fetch();
+			return $row[$field];
+		}
+		
+		function escape_string($string) {
+			return substr($this->quote($string), 1, -1);
+		}
+	}
+	
+	class Min_PDOStatement extends PDOStatement {
+		var $_offset = 0, $num_rows;
+		
+		function fetch_assoc() {
+			return $this->fetch(2); // PDO::FETCH_ASSOC
+		}
+		
+		function fetch_row() {
+			return $this->fetch(3); // PDO::FETCH_NUM
+		}
+		
+		function fetch_field() {
+			$row = (object) $this->getColumnMeta($this->_offset++);
+			$row->orgtable = $row->table;
+			$row->orgname = $row->name;
+			$row->charsetnr = (in_array("blob", $row->flags) ? 63 : 0);
+			return $row;
+		}
+		
+		function free() {
+			// $this->__destruct() is not callable
+		}
+	}
+	
+	$dbh = new Min_PDO_MySQL;
+
+} else {
+	page_header(lang('No MySQL extension'), lang('None of supported PHP extensions (%s) are available.', 'MySQLi, MySQL, PDO_MySQL'), null);
+	page_footer("auth");
+	exit;
+}
+
+$types = array(
+	"tinyint" => 3, "smallint" => 5, "mediumint" => 8, "int" => 10, "bigint" => 20,
+	"float" => 12, "double" => 21, "decimal" => 66,
+	"date" => 10, "datetime" => 19, "timestamp" => 19, "time" => 10, "year" => 4,
+	"char" => 255, "varchar" => 65535,
+	"binary" => 255, "varbinary" => 65535,
+	"tinytext" => 255, "text" => 65535, "mediumtext" => 16777215, "longtext" => 4294967295,
+	"tinyblob" => 255, "blob" => 65535, "mediumblob" => 16777215, "longblob" => 4294967295,
+	"enum" => 65535, "set" => 64,
+);
+$unsigned = array("", "unsigned", "zerofill", "unsigned zerofill");
+
+function get_databases() {
+	$return = &$_SESSION["databases"][$_GET["server"]];
+	if (!isset($return)) {
+		flush();
+		$return = get_vals("SHOW DATABASES");
+	}
+	return $return;
+}
+
+function fields($table) {
+	global $dbh;
+	$return = array();
+	$result = $dbh->query("SHOW FULL COLUMNS FROM " . idf_escape($table));
+	if ($result) {
+		while ($row = $result->fetch_assoc()) {
+			preg_match('~^([^( ]+)(?:\\((.+)\\))?( unsigned)?( zerofill)?$~', $row["Type"], $match);
+			$return[$row["Field"]] = array(
+				"field" => $row["Field"],
+				"type" => $match[1],
+				"length" => $match[2],
+				"unsigned" => ltrim($match[3] . $match[4]),
+				"default" => (strlen($row["Default"]) || ereg("char", $match[1]) ? $row["Default"] : null),
+				"null" => ($row["Null"] == "YES"),
+				"auto_increment" => ($row["Extra"] == "auto_increment"),
+				"collation" => $row["Collation"],
+				"privileges" => array_flip(explode(",", $row["Privileges"])),
+				"comment" => $row["Comment"],
+				"primary" => ($row["Key"] == "PRI"),
+			);
+		}
+		$result->free();
+	}
+	return $return;
+}
+
+function indexes($table) {
+	global $dbh;
+	$return = array();
+	$result = $dbh->query("SHOW INDEX FROM " . idf_escape($table));
+	if ($result) {
+		while ($row = $result->fetch_assoc()) {
+			$return[$row["Key_name"]]["type"] = ($row["Key_name"] == "PRIMARY" ? "PRIMARY" : ($row["Index_type"] == "FULLTEXT" ? "FULLTEXT" : ($row["Non_unique"] ? "INDEX" : "UNIQUE")));
+			$return[$row["Key_name"]]["columns"][$row["Seq_in_index"]] = $row["Column_name"];
+			$return[$row["Key_name"]]["lengths"][$row["Seq_in_index"]] = $row["Sub_part"];
+		}
+		$result->free();
+	}
+	return $return;
+}
+
+function foreign_keys($table) {
+	global $dbh, $on_actions;
+	static $pattern = '(?:[^`]+|``)+';
+	$return = array();
+	$result = $dbh->query("SHOW CREATE TABLE " . idf_escape($table));
+	if ($result) {
+		$create_table = $dbh->result($result, 1);
+		$result->free();
+		preg_match_all("~CONSTRAINT `($pattern)` FOREIGN KEY \\(((?:`$pattern`,? ?)+)\\) REFERENCES `($pattern)`(?:\\.`($pattern)`)? \\(((?:`$pattern`,? ?)+)\\)(?: ON DELETE (" . implode("|", $on_actions) . "))?(?: ON UPDATE (" . implode("|", $on_actions) . "))?~", $create_table, $matches, PREG_SET_ORDER);
+		foreach ($matches as $match) {
+			preg_match_all("~`($pattern)`~", $match[2], $source);
+			preg_match_all("~`($pattern)`~", $match[5], $target);
+			$return[$match[1]] = array(
+				"db" => idf_unescape(strlen($match[4]) ? $match[3] : $match[4]),
+				"table" => idf_unescape(strlen($match[4]) ? $match[4] : $match[3]),
+				"source" => array_map('idf_unescape', $source[1]),
+				"target" => array_map('idf_unescape', $target[1]),
+				"on_delete" => $match[6],
+				"on_update" => $match[7],
+			);
+		}
+	}
+	return $return;
+}
+
+function view($name) {
+	global $dbh;
+	return array("select" => preg_replace('~^(?:[^`]+|`[^`]*`)* AS ~U', '', $dbh->result($dbh->query("SHOW CREATE VIEW " . idf_escape($name)), 1)));
+}
+
+function collations() {
+	global $dbh;
+	$return = array();
+	$result = $dbh->query("SHOW COLLATION");
+	while ($row = $result->fetch_assoc()) {
+		if ($row["Default"] && $return[$row["Charset"]]) {
+			array_unshift($return[$row["Charset"]], $row["Collation"]);
+		} else {
+			$return[$row["Charset"]][] = $row["Collation"];
+		}
+	}
+	$result->free();
+	return $return;
+}
+
+function table_comment(&$row) {
+	if ($row["Engine"] == "InnoDB") {
+		$row["Comment"] = preg_replace('~(?:(.+); )?InnoDB free: .*~', '\\1', $row["Comment"]);
+	}
+}