hey @U054UD60U - looks like it's now txc/tx-events->docs

is it the same?

also, the usual heads-up that these namespaces aren't part of the Crux API and can change between releases 😉 (disclaimer disclaimer) that said, happy to help out with what to use instead

Yeah, I picked this piece of code up from somehwere else I guess.

What is then recommende to be used for a custom tx log implementation?

it now returns the docs from the doc store as well, although I don't know whether this is what you'd want in this case

it’s for the implementation of submit-tx so I only need ti hashes I guess

are you able to share more of the implementation? my first thought would be that the Crux tx-consumer should deal with most of that for you anyway

https://gist.github.com/ordnungswidrig/df3c51fc511b56d7e6499c2263bba32d

It’s experimental but was kind of working 😉

DynamoDB - niice :star-struck:

my guess (without seeing query-tx-table) is that crux.tx/docs is copied from our own previous Kafka implementation, which included metadata about which docs the transaction referred to in the tx-log event in Kafka, at least, that's no longer required, because the general tx-consumer figures out what docs are required from each transaction - so we've been able to remove it from the Kafka tx-log implementation

I see.

https://github.com/juxt/crux/commit/24d6f7568d82e9b19f46d1ddd212c7b7b4a9b09d was the commit removing it from Kafka

I saw that commit and was surprised 🙂

Would be nice to learn about what is actually needed to implement a tx log

So only the events must be stored?

Actually query-tx-table doesn’t return the value in crux.tx/docs either 😉

🙂

yes, only the tx-events - we decompose transaction operations (that the user supplies - excuse the internal naming here, it's not always 100% clear) into tx-events and documents. the tx-events go on the tx-log, the documents go into the document-store reason for this is that if we later want to irretrievably evict those documents, we only need mutate the document-store (replacing the documents with tombstones) - the tx-log remains unaltered

https://juxt.pro/blog/posts/crux-doc-store.html might be helpful?

Thanks, I will explore this later.