public function __construct(AST\Node $AST, $sqlWalker)
{
parent::__construct($AST, $sqlWalker);
if ($AST instanceof AST\UpdateStatement) {
$this->_sqlStatements = $sqlWalker->walkUpdateStatement($AST);
} else {
if ($AST instanceof AST\DeleteStatement) {
$this->_sqlStatements = $sqlWalker->walkDeleteStatement($AST);
}
}
}
