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<?php
declare(strict_types=1);
namespace MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\Ltree;
use MartinGeorgiev\Doctrine\ORM\Query\AST\Functions\BaseVariadicFunction;
/**
* Implementation of PostgreSQL lca function.
*
* Computes longest common ancestor of paths (up to 8 arguments are supported).
* Also supports array input: lca(ltree[]).
* @see https://www.postgresql.org/docs/current/ltree.html#LTREE-FUNCTIONS
* @since 3.5
* @author Martin Georgiev <[email protected]>
* @example Using it in DQL: "SELECT LCA(e.path1, e.path2) FROM Entity e"
* Returns ltree, longest common ancestor of paths.
*/
class Lca extends BaseVariadicFunction
{
protected function getNodeMappingPattern(): array
return ['StringPrimary'];
}
protected function getFunctionName(): string
return 'lca';
protected function getMinArgumentCount(): int
return 2;
protected function getMaxArgumentCount(): int
return 8;
martin-georgiev /
postgresql-for-doctrine
