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ERROR 08P01 (protocol_violation) SimpleQuery not allowed while in extended protocol mode #513

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perezd opened this issue Jul 1, 2020 · 2 comments
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ERROR 08P01 (protocol_violation) SimpleQuery not allowed while in extended protocol mode #513

perezd opened this issue Jul 1, 2020 · 2 comments

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@perezd
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perezd commented Jul 1, 2020

I've got a very basic Ecto schema setup with CockroachDB and I'm getting this error only in unit testing contexts, works totally fine in iex as well as queries performed by phoenix over HTTP.

Here's an extensive report of what I found, I notified CockroachDB about this as I suspect this is actually their problem, but wanted to raise this here in case there was a potential workaround postgrex might be able to introduce:
cockroachdb/cockroach#50858
@perezd
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perezd commented Jul 2, 2020 •
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Could this have something to do with the Sandbox adapter given that it works fine in iex and phoenix?
EDIT: I can confirm that my tests can make queries if I disable the sandbox.

@perezd
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perezd commented Jul 9, 2020

This was resolved by CockroachDB:
cockroachdb/cockroach#33693 (comment)

@perezd perezd closed this as completed Jul 9, 2020
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@perezd