jordanlewis

15 ms·

31.
by jordanlewis 6y ago
This is awesome. I love the simplicity. I tested it out with CockroachDB to satisfy my curiosity and it works perfectly, using the PostgreSQL driver. I think adding first-class support would be as easy as making a new driver that's the
32.
by jordanlewis 6y ago
The professional's output would be a lot more listenable, though, most likely!
33.
by jordanlewis 7y ago
At this time we're limited to US-based remotes. Sorry about that, and I've updated the post to make that clear.
34.
by jordanlewis 7y ago
Cockroach Labs | NYC, SF, REMOTE (USA) | Full-time Cockroach Labs is hiring a variety of positions including engineers, engineering managers, developer relations. https://www.cockroachlabs.com/careers/ Please apply usi
35.
by jordanlewis 7y ago
The post is from 2016.
36.
by jordanlewis 7y ago
For the record, the first approach was just used for simplicity in the blog post. The production system works differently (and doesn't have to waste memory per-datum) - we have typed containers, each of which have a primitive slice wit
37.
by jordanlewis 7y ago
We wrote a (brief) blog post about this decision way back in 2015 that you might be interested in: https://www.cockroachlabs.com/blog/why-go-was-the-right-choi... We're generally pretty happy with our choice to u
38.
by jordanlewis 7y ago
A few Cockroach Labs engineers are hanging out on this thread - happy to answer any questions you might have about how we made Go go faster.
39.
by jordanlewis 7y ago
CockroachDB no longer stores each non-primary-key column in a separate value by default - you're right that that's less efficient than necessary. You can now explicitly specify the layout of your table data across keys via Cockroa
40.
./cockroach demo: a geo-distributed multi-node SQL database on your laptop(cockroachlabs.com)
12 points by jordanlewis 7y ago|0 comments
41.
by jordanlewis 8y ago
We don't have any plans to remove the row-by-row execution engine. Likely, we'll have some analysis during planning that can inform whether to use the row-oriented or column-oriented engine. I think the use cases for the row-orien
42.
Faster hash joiner with vectorized execution(cockroachlabs.com)
120 points by jordanlewis 8y ago|19 comments
43.
by jordanlewis 9y ago
CockroachDB underwent a Jepsen audit by Kyle Kingsbury before its 1.0 release. Check out the blog post[0] and Kyle's analysis[1]. We also run Jepsen tests against the database nightly, ensuring that its isolation guarantees do not regr
44.
by jordanlewis 9y ago
Each warehouse requires about 80 megabytes of storage, unreplicated. 1250 warehouses * 80 MB * 3-way replication = 300 GB, which comfortably fits in a 3-node cluster with 1 local SSD each.
45.
A petition to Etsy's leadership(coworker.org)
3 points by jordanlewis 9y ago|0 comments
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by jordanlewis 9y ago
Regarding change data capture, please see Arjun's answer: https://news.ycombinator.com/item?id=14309173
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by jordanlewis 9y ago
JSON/JSONB will come after array support. As far as I know, we don't have any concrete plans at this time to support listen/notify or spatial datatypes.
48.
by jordanlewis 9y ago
Yep, JSONB is on our roadmap as well, although it won't come before array column type support. Thanks for the feedback - I'd personally love to see migrations from PostgreSQL to CockroachDB become seamless for more complex use cas
49.
by jordanlewis 9y ago
I'm an engineer on the SQL team at CockroachDB. We're very aware of our missing support for array column types - and in fact beginning to add support for arrays is one of my team's priorities for the next release cycle. What
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by jordanlewis 12y ago
It's one of my favorite features! Full disclosure - I made it during my Google Summer of Code with Bram in 2008.
51.
by jordanlewis 13y ago
New York, NY (Union Square) - full-time Knewton's mission is to personalize the world's education. The Knewton infrastructure blends data science, advanced learning models, and pedagogical expertise to enable real-time personalization at ma
52.
by jordanlewis 14y ago
NYC (Union Square) - Knewton. Full time. http://www.knewton.com/jobs/ Knewton is hiring software engineers, data scientists, content curators, product managers, marketing managers, and more. About Knewton: The world’s leading digital educ
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How Knewton extends AWS CloudFormation to operate without an Ops team(knewton.com)
3 points by jordanlewis 14y ago|0 comments
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by jordanlewis 14y ago
It's kind of like Storm. I'd love to see a comparison written by the authors.
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by jordanlewis 14y ago
Knewton: New York (NYC) - FULLTIME, INTERN, H1B http://knewton.com We're a funded startup seeking passionate software engineers interested in machine learning, distributed systems, and "big data" problems. Investors include Peter Thiel (F
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by jordanlewis 15y ago
Kenny's work is a language for describing the schema of a graph (e.g. "this graph is a bipartite graph"). We want our non-programmers to be able to write graph schemas, hence the DSL. I imagine one could use the Gremlin language to specify
57.
by jordanlewis 15y ago
Kenny's initial implementation of the validation on a sample 50,000 node data graph and a specific ontology took four seconds. The goal of Kenny's project was to get a working DSL and prototype of the validation algorithm. We don't really h
58.
by jordanlewis 15y ago
I'm a software engineer at Knewton who worked with Kenny on this project. We're not using Neo4j because of other unrelated constraints that have led us to write our own graph data store. Kenny's work implemented the "rule paralleling querie
59.
by jordanlewis 15y ago
Knewton New York, NY - Union Square We're hiring software engineers, engineering managers, and data scientists with superior problem solving and coding skills. Watch this video: http://www.knewton.com/jobs/ Knewton is an adaptive learning
60.
by jordanlewis 15y ago
Right in their privacy policy ( http://www.google.com/intl/en/privacy/privacy-policy.html ): We may collect the following types of information: <snip> User communications – When you send email or other communications to Googl

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