Add addLast() function

src/Builder/Universe.php

@@ -5,6 +5,7 @@ namespace Arendsen\FluxQueryBuilder\Builder;
 use Arendsen\FluxQueryBuilder\Builder\QueryBuilderInterface;
 use Arendsen\FluxQueryBuilder\Functions\AggregateWindow;
 use Arendsen\FluxQueryBuilder\Functions\Duplicate;
+use Arendsen\FluxQueryBuilder\Functions\Last;
 use Arendsen\FluxQueryBuilder\Functions\Reduce;
 use Arendsen\FluxQueryBuilder\Functions\Sort;
 use Arendsen\FluxQueryBuilder\Functions\Map;
@@ -103,4 +104,12 @@ trait Universe
         );
         return $this;
     }
+
+	public function addLast(string $column = '_value'): QueryBuilderInterface
+	{
+		$this->addToQuery(
+			new Last($column)
+		);
+		return $this;
+	}
 }

src/Functions/Last.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Arendsen\FluxQueryBuilder\Functions;
+
+class Last extends Base
+{
+	/**
+	 * @var int $column
+	 */
+	private $column;
+
+	public function __construct(string $column = '_value')
+	{
+		$this->column = $column;
+	}
+
+	public function __toString()
+	{
+		return '|> last(column: ' . (string)$this->column . ') ';
+	}
+}