go-sqlite3 VS plumber

Yep, I just made it tweakable at build, which was always the intent, although I expect the default to be popular.

https://github.com/ncruces/go-sqlite3/blob/67d859a5/vfs/adia...

That's unfortunate about the default parameters, but note that you can also replace the KDF altogether (besides just not using it).

You just need to implement this interface, with any HBSH construction and KDF:

https://github.com/ncruces/go-sqlite3/blob/67d859a5/vfs/adia...

If you keep the HBSH and change the KDF, your file format will be “compatible.”

struggling figuring out how to make my cgo sqlite cross-compile to Windows

Plenty of people trying to fix that.

There's at least:

https://modernc.org/sqlite

Then there's https://github.com/zombiezen/go-sqlite that actually builds https://crawshaw.io/sqlite on top of modernc.

And there's mine that has both a low level and a database/sql driver builds and runs everywhere Go does: https://github.com/ncruces/go-sqlite3

If you're interested both SQLite's and my memdb VFSes implement safe locking.

Depending on your familiarity with Go, mine maybe easier to follow, or not.

https://github.com/ncruces/go-sqlite3/blob/f1b00a9944730eaa9...

One thing I tried to make sure, to avoid the pitfall modernc is having, is to make sure building "the WASM BLOB" is easily reproducible with widely available tools:

https://github.com/ncruces/go-sqlite3/blob/main/.github/work...

I do apply some light patches to SQLite, but so far they've always cleanly applied, and I can produce a new release within hours of being notified of SQLite releases.

Disclosure: I'm working on alternative Cgo-less bindings for SQLite, using wazero.

https://github.com/ncruces/go-sqlite3

One of the problems of the modernc approach (IMO) is that they're not just transpiring CPU/compute stuff, but entirely OS/platform stuff.

Each Go file of theirs is a xxx_os_arch.go that starts with 100s of OS-#defines-as-consts, and goes on to transpile fully #ifdefed code.

It also implements antithetical (in Go) stuff like goroutine local storage, because libc pthreads can't live without it.

And all IO is via direct syscalls that will never play nice with the Go scheduler, because, again this is OS level stuff.

WASM defines a cross platform CPU and an ABI, and using that for compute and the bottom OS layer in Go you get (IMO) a nicer end result.

Given the hard task of generating decent code from WASM at load time (wazero's compiler is pretty naive, a better one is being developed, but it will take seconds to generate good code for anything non trivial like SQLite) I wouldn't mind having a solution that translated to Go, or Go ASM, at build time.

The github.com/ncruces/go-sqlite3 is a link.

Using the stack pointer global is an interesting hack. I'd never thought of that. Need to compare with what I'm doing for SQLite (a kind of per connection arena).

Streamdal

4. Go to the provided UI (or run the CLI app) and be able to peek into what your app is reading or writing, like with `tail -f`.

And that's basically it. There's a bunch more functionality in the project but we find this to be the most immediately useful part. Every developer we've shown this to has said "I wish I had this at my gig at $company" - and we feel exactly the same. We are devs and this is what we’ve always wanted, hundreds of times - a way to just quickly look at the data our software is producing in real-time, without having to jump through any hoops.

If you want to learn more about the "why" and the origin of this project - you can read about it here: https://streamdal.com/manifesto

— — —

HOW DOES IT WORK?

The SDK establishes a long-running session with the server (using gRPC) and "listens" for commands that are forwarded to it all the way from the UI -> server -> SDK.

The commands are things like: "show me the data that you are currently consuming", "apply these rules to all data that you produce", "inspect the schema for all data", and so on.

The SDK interprets the command and either executes Wasm-based rules against the data it's processing or if it's a `tail` request - it'll send the data to the server, which will forward it to the UI for display.

The SDK IS part of the critical path but it does not have a dependency on the server. If the server is gone, you won't be able to use the UI or send commands to the SDKs, but that's about it - the SDKs will continue to work and attempt to reconnect to the server behind the scenes.

— — —

TECHNICAL BITS

The project consists of a lot of "buzzwordy" tech: we use gRPC, grpc-Web, protobuf, redis, Wasm, Deno, ReactFlow, and probably a few other things.

The server is written in Go, all of the Wasm is Rust and the UI is Typescript. There are SDKs for Go, Python, and Node. We chose these languages for the SDKs because we've been working in them daily for the past 10+ years.

The reasons for the tech choices are explained in detail here: https://docs.streamdal.com/en/resources-support/open-source/

— — —

LAST PART

OK, that's it. What do you think? Is it useful? Can we answer anything?

- If you like what you're seeing, give our repo a star: https://github.com/streamdal/streamdal

Checkout plumber https://github.com/streamdal/plumber if you want all the Postgres changes sent to basically any type of broker queue https://docs.streamdal.com/en/data-ingestion/relay/postgresql-cdc/. I would say Nat's Jetstream is probably the way to go if you have K8s running already. It's a dead simple service written in Go. Just make sure you allocate enough memory to Jetstream.

I recommend Streamdal. The connecting agent is open source and distributed by default, so it will scale horizontally WAY better than Debezium. All data ingested is indexed into parquet as well, and you can do serverless functions/transforms on the platform to reduce Snowflake compute costs.

For CDC and event driven part of the stack, Plumber is a great free tool. That project is going to be adding sampling soon too - this can def help with the cost of ETL.

https://github.com/batchcorp/plumber check it out if you want to get into event driven systems

That’s awesome to see. My coworker and I always figured Go would be perfect for this. Going to be a serious amount of work! I see you use NATS as well. Big fan of it. Checkout our project https://github.com/batchcorp/plumber if you end up needing to inspect or send messages while deving against it.

Checkout plumber https://github.com/batchcorp/plumber join our slack https://launchpass.com/streamdal we got a pretty knowledgeable group