They are fully stable and perform very well in Postgres today. There are some caveats, but they don't result in any sort of hiccups or unpredictable behavior.
Yeah that's what I've read too. Just haven't gotten around to trying them.
You've probably already read the Postgres docs on hash indexes, but just in case, it says "hash indexes may not be suitable for tables with rapidly increasing number of rows." I agree with the other commenter that it's worth at least trying without them if you haven't already, even though you're already VACUUMing.
You've probably already read the Postgres docs on hash indexes, but just in case, it says "hash indexes may not be suitable for tables with rapidly increasing number of rows." I agree with the other commenter that it's worth at least trying without them if you haven't already, even though you're already VACUUMing.