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-rw-r--r--system/database/drivers/mysqli/mysqli_driver.php54
1 files changed, 50 insertions, 4 deletions
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index be61aab20..b5a1e26ed 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -45,10 +45,6 @@ class CI_DB_mysqli_driver extends CI_DB {
// The character used for escaping
protected $_escape_char = '`';
- // clause and character used for LIKE escape sequences - not used in MySQL
- protected $_like_escape_str = '';
- protected $_like_escape_chr = '\\';
-
protected $_random_keyword = ' RAND()'; // database specific random keyword
/**
@@ -65,6 +61,17 @@ class CI_DB_mysqli_driver extends CI_DB {
*/
public function db_connect()
{
+ // Use MySQL client compression?
+ if ($this->compress === TRUE)
+ {
+ $port = empty($this->port) ? NULL : $this->port;
+
+ $mysqli = new mysqli();
+ @$mysqli->real_connect($this->hostname, $this->username, $this->password, $this->database, $port, NULL, MYSQLI_CLIENT_COMPRESS);
+
+ return $mysqli;
+ }
+
return empty($this->port)
? @new mysqli($this->hostname, $this->username, $this->password, $this->database)
: @new mysqli($this->hostname, $this->username, $this->password, $this->database, $this->port);
@@ -85,6 +92,17 @@ class CI_DB_mysqli_driver extends CI_DB {
return $this->db_connect();
}
+ // Use MySQL client compression?
+ if ($this->compress === TRUE)
+ {
+ $port = empty($this->port) ? NULL : $this->port;
+
+ $mysqli = mysqli_init();
+ $mysqli->real_connect('p:'.$this->hostname, $this->username, $this->password, $this->database, $port, NULL, MYSQLI_CLIENT_COMPRESS);
+
+ return $mysqli;
+ }
+
return empty($this->port)
? @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database)
: @new mysqli('p:'.$this->hostname, $this->username, $this->password, $this->database, $this->port);
@@ -400,6 +418,14 @@ class CI_DB_mysqli_driver extends CI_DB {
*/
public function error()
{
+ if ( ! empty($this->conn_id->connect_errno))
+ {
+ return array(
+ 'code' => $this->conn_id->connect_errno,
+ 'message' => is_php('5.2.9') ? $this->conn_id->connect_error : mysqli_connect_error()
+ );
+ }
+
return array('code' => $this->conn_id->errno, 'message' => $this->conn_id->error);
}
@@ -449,6 +475,26 @@ class CI_DB_mysqli_driver extends CI_DB {
// --------------------------------------------------------------------
/**
+ * FROM tables
+ *
+ * Groups tables in FROM clauses if needed, so there is no confusion
+ * about operator precedence.
+ *
+ * @return string
+ */
+ protected function _from_tables()
+ {
+ if ( ! empty($this->qb_join) && count($this->qb_from) > 1)
+ {
+ return '('.implode(', ', $this->qb_from).')';
+ }
+
+ return implode(', ', $this->qb_from);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Close DB Connection
*
* @return void