datom level query analysis

[pleasetrythisathome]

Have you seen this discussion? I know this is more a datascript question, but it'd be great if changed? analysis could be smarter than a straight equality of the query on the old and new db.

tonsky/datascript#12

[bahulneel]

Thanks this is really helpful, my way of doing things was a bit of a cludge.

[metasoarous]

I know this is an old thread, but it's worth noting that these ideas have become manifest as https://github.com/mpdairy/posh, which more or less automates (in most cases anyway) the ideas discussed in #12. Initially, Posh was built on/for Reagent, but has since been refactored into pure analysis code that could potentially be reworked for any UI framework. I think he'd be very open to merging in a namespace binding the pure parts of the library with om. Om-next may obviate some of the need for this, but there may still be some value to be had there. May be worth looking into...

[bahulneel]

Yeah, it was a crazy idea I had at clojurex. Turns out the for a small (for some value of small) number of queries, or pull type requests that it's cheaper to do something similar to posh.

My more recent work uses a form of the rete algorithm to generate new datoms which I will release soon. But that is the other half of the problem I was trying to solve here. The solution in posh is much more focused than what I did and is kind of why I stopped chasing this.

[metasoarous]

Gotcha.

The RETE algorithm? Really!? Interesting. I've been wondering how that might be applied in a DataScript/Datalog setting, so I'd be very interested to see that work when you're ready to release it.

[bahulneel]

What I have now only works with Datomic but I think that's only incidental.
The idea is to store production rules in the db and then have a generic
runtime over transaction reports to update the rete network. This does mean
I'm slowly implementing the rules by hand so i can store partial results in
the db. So far I have a simplified version of bloom working as well as a
strips planning example. Should be open sourcing it all in a matter of days
for some input.

On 29 Oct 2016 01:04, "Christopher Small" notifications@github.com wrote:

Gotcha.

The RETE algorithm? Really!? Interesting. I've been wondering how that
might be applied in a DataScript/Datalog setting, so I'd be very interested
to see that work when you're ready to release it.

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[metasoarous]

Very interesting; Keep us posted!