How to delete a Redis Stream?

Question

I've created a Redis stream:

XADD mystream * foo bar

And I've associated it with a consumer group:

XGROUP CREATE mystream mygroup $

Now I want to delete it, so that Redis acts as though the stream had never existed. How do I delete it?

I've tried using XTRIM:

XTRIM mystream MAXLEN 0

This successfully puts the length of the stream to zero. But it doesn't fully delete the stream, as attempts to XREADGROUP still succeed and do not return the typical error when this method is called without the group existing:

XREADGROUP GROUP mygroup myconsumer COUNT 1 STREAMS mystream >

Actual output:

(nil)

Expected output:

NOGROUP No such key 'mystream' or consumer group 'mygroup' in XREADGROUP with GROUP option

Answer 1

Just use the DEL command:

DEL mystream