# @comunica/actor-rdf-join-minus-hash

> A minus-hash rdf-join actor

Latest version **5.3.0** (published 2026-07-10) · MIT license · 0 weekly downloads

## Install

```sh
npm install @comunica/actor-rdf-join-minus-hash
pnpm add @comunica/actor-rdf-join-minus-hash
yarn add @comunica/actor-rdf-join-minus-hash
bun add @comunica/actor-rdf-join-minus-hash
```

## Health

**Score 55/100 (C)** — status: active.

Positive: no vulnerabilities; recently updated; high maintenance score.

Warnings: low downloads; no types; no esm support.

## Facts

| | |
|---|---|
| Version | 5.3.0 |
| Published | 2026-07-10 |
| First published | 2022-02-08 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 0 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 580 |
| Maintainers | joachimvh, rubensworks, rubenverborgh, dexagod, jeswr |
| Keywords | comunica, actor, rdf-join, minus-hash |

## Links

- npm: https://www.npmjs.com/package/@comunica/actor-rdf-join-minus-hash
- Repository: https://github.com/comunica/comunica
- Homepage: https://comunica.dev/
- Issues: https://github.com/comunica/comunica/issues
- Funding: https://opencollective.com/comunica-association
- npm.io page: https://npm.io/package/@comunica/actor-rdf-join-minus-hash

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## Recent versions

- 5.3.0 (latest) — 2026-07-10
- 4.4.2-alpha.49.0 (next) — 2025-10-22
- 5.2.3 — 2026-05-26
- 5.2.2 — 2026-05-03
- 5.2.0 — 2026-04-14
- 5.1.3 — 2026-01-30
- 5.1.0 — 2026-01-16
- 5.0.3 — 2026-01-12
- 5.0.2 — 2026-01-12
- 5.0.0 — 2026-01-08
- 4.5.0 — 2025-11-18
- 4.4.1 — 2025-09-25
- 4.4.0 — 2025-09-17
- 4.2.0 — 2025-04-29
- 4.1.0 — 2025-02-11
- … 71 more at https://npm.io/package/@comunica/actor-rdf-join-minus-hash/versions

## README

# Comunica Minus Hash RDF Join Actor

[![npm version](https://badge.fury.io/js/%40comunica%2Factor-rdf-join-minus-hash.svg)](https://www.npmjs.com/package/@comunica/actor-rdf-join-minus-hash)

An [RDF Join](https://github.com/comunica/comunica/tree/master/packages/bus-rdf-join) actor that anti-joins (minus) 2 streams using the hash join algorithm.
Depending on how this actor is configured, it either does or does not support streams that can have undefined values.

This module is part of the [Comunica framework](https://github.com/comunica/comunica),
and should only be used by [developers that want to build their own query engine](https://comunica.dev/docs/modify/).

[Click here if you just want to query with Comunica](https://comunica.dev/docs/query/).

## Install

```bash
$ yarn add @comunica/actor-rdf-join-minus-hash
```

## Configure

After installing, this package can be added to your engine's configuration as follows:
```text
{
  "@context": [
    ...
    "https://linkedsoftwaredependencies.org/bundles/npm/@comunica/actor-rdf-join-minus-hash/^5.0.0/components/context.jsonld"
  ],
  "actors": [
    ...
    {
      "@id": "urn:comunica:default:rdf-join/actors#minus-hash",
      "@type": "ActorRdfJoinMinusHash",
      "mediatorJoinSelectivity": { "@id": "urn:comunica:default:rdf-join-selectivity/mediators#main" },
      "canHandleUndefs": true
    }
  ]
}
```

### Config Parameters

* `mediatorJoinSelectivity`: A mediator over the [RDF Join Selectivity bus](https://github.com/comunica/comunica/tree/master/packages/bus-rdf-join-selectivity).
* `canHandleUndefs`: If this actor can handle undefined values. If false, performance will be slightly better.

---
_Source: https://npm.io/package/@comunica/actor-rdf-join-minus-hash · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._