ERR wrong number of arguments for 'expire' command - Azure Cache for Redis about stackexchange.redis

[philon-msft]

Support for the "ExpireWhen" arg ([NX | XX | GT | LT]) wasn't added until Redis 7.0.0 (see https://redis.io/docs/latest/commands/expire/)

[TheCakeMonster]

Ah, so it was. Thanks, yes that explains it. I didn't know there had been any changes in this area. Since the command has been around for such a long time, I never even considered it. DOH!

Is there any desire to have StackExchange.Redis change its behaviour based on Redis version? If so, it's not doing that in this regard, and I'll leave the issue open. However, if there is no desire for it to be backwards compatible and adapt its behaviour to suit older versions then we can instead close this.

[mgravell]

To adapt to the server version, we would have to go down the route of Lua or MULTI/EXEC; both of these IMO add unexpected complexity, so I'd rather just leave it as-is. I'm also averse to blind server-version checks, because it is sometimes the case that "not quite redis" servers implement features that their reported server version doesn't.

[TheCakeMonster]

Thanks Marc, understood. I'll close this, then.