Very interesting. I hope this can be shipped somehow in the free version of CRDB without resorting to a custom compiler.
If you're just using the pre-compiled binaries, this Go patch is baked in. If you're building the CockroachDB binary from source, and are just following our usual build steps using Bazel, you'll get this stuff as is. There's no need to compile a custom Go first.
Thanks! Also there'll be less need for custom builds now that ARM64 binaries are being offered