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mit-pdos / noria

Fast web applications through dynamic, partially-stateful dataflow
Apache License 2.0
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Index out of bounds error after changing schema, potentially confusing error #163

Closed anandijain closed 4 years ago

anandijain commented 4 years ago

I'm learning Rust+Noria, but I have a simple db (from quickstart.rs) with a table like Article, and permanent persistence set. I ran into an error after trying to write to the db after having changed the schema, that could potentially be cleared up so that it is more obvious that there is a schema conflict.

thread 'tokio-runtime-worker' panicked at 'index out of bounds: the len is 5 but the index is 5', /home/*/.cargo/registry/src/github.com-1ecc6299db9ec823/noria-dataflow-0.4.0/src/ops/project.rs:239:32

It is particularly odd, because, say someone else pushed a commit that changed the schema, the new length of columns in the table is not 5, potentially misleading the debugger.

jonathanGB commented 4 years ago

Can you tell us the steps? That is, what your first Article table looked like, how you migrated to the new schema (and what does the new schema look like), and what did you try to insert?

anandijain commented 4 years ago

Hello, I believe this was user error. I think I was incorrectly specifying the --deployment tag. Sorry, closing since I can't recreate the issue.