This is expected behavior. After installing and activating a plugin, you are supposed to Rebuild & Restart. There's a special button in the ACP to perform this.
Then there is no problem. Thank you for your answers.
That might be a nice workaround, although slightly nefarious in spirit 😆
That said, I don't use Pushbullet anymore, as I no longer support them since they went pro. Happy to hand over the reigns to somebody else if a volunteer is available 🙂
I am writing like plug-in, which provides an like functionality for anonymous as well as registered user.
1. Anonymous User should be able to like on any comment/reply and I have to restrict anonymous user via IP address.
Yet, I can store IP values to redis database, I need to find out, The given IP value is present in "like:pid" hash set.
I need to write query structure which finds out the given anonymous users IP address is not present in database for that particular post.