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Session::setSavepoint — Create savepoint
Create a new savepoint for the transaction.
本函数还未编写文档，仅有参数列表。
name
The name of the savepoint. The name is auto-generated if the optional name
parameter is not defined as 'SAVEPOINT1', 'SAVEPOINT2', and so on.
The name of the save point.
示例 #1 mysql_xdevapi\Session::setSavepoint() example
<?php
$session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
$collection = $session->getSchema("addressbook")->getCollection("names");
$session->startTransaction();
$collection->add( '{"test1":1, "test2":2}' )->execute();
$savepoint = $session->setSavepoint();
$collection->add( '{"test3":3, "test4":4}' )->execute();
$session->releaseSavepoint($savepoint);
$session->rollback();
?>