dmmulroy/pg_drive_init_twice_solution.md

Created January 31, 2019 14:46

Star () You must be signed in to star a gist
Fork () You must be signed in to fork a gist

Learn more about clone URLs
Clone this repository at <script src="https://gist.github.com/dmmulroy/2e66eafae5ad80681ee708103bff8130.js"></script>
Save dmmulroy/2e66eafae5ad80681ee708103bff8130 to your computer and use it in GitHub Desktop.

Go postgres driver is being registered twice fix

Raw

I ran into this and figured out what was going on; for the sake of future google searchers here is what might be happing if you see this error.

I was in a project with vendored dependencies, so 2 version of lib/pq existed: one in my project's vendor/ directory and another in $GOPATH/src/github.com/lib/pq. Normally this wouldn't be an issue, since the project should use the vendored one. But I failed to vendor a third dependency (in this case mattest/migrate), so it was getting built out of my GOPATH, and that imports lib/pq so used the GOPATH version of lib/pq for that. So two lib/pq packages would get built, both have their init() called... boom

Author

dmmulroy commented Jan 31, 2019

credit to: lib/pq#238 (comment)

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment