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<?php
declare(strict_types=1);
namespace MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\PostGIS;
use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\BaseFunction;
/**
* Implementation of PostGIS ST_UnaryUnion() function.
*
* Performs unary union on a geometry.
* Useful for dissolving internal boundaries in polygons.
* @see https://postgis.net/docs/ST_UnaryUnion.html
* @since 3.5
* @author Martin Georgiev <[email protected]>
* @example Using it in DQL: "SELECT ST_UNARYUNION(g.geometry) FROM Entity g"
* Returns unioned geometry.
*/
class ST_UnaryUnion extends BaseFunction
{
protected function customizeFunction(): void
$this->setFunctionPrototype('ST_UnaryUnion(%s)');
$this->addNodeMapping('StringPrimary');
}