tudorb

4 ms·

1.
by tudorb 2y ago
Giuseppe! Long time no see. Rockset’s architecture changed somewhat since we last talked— not in fundamental ways, but in ways that would alleviate your concerns. If you want to talk (not secret) technical details, you know where to find me
2.
Rockset Beats ClickHouse and Druid on the Star Schema Benchmark; Does It Matter?(linkedin.com)
18 points by tudorb 4y ago|0 comments
3.
by tudorb 8y ago
I think the main difference between our flavor of SQL and CockroachDB's (or PostgreSQL's) is that we don't have a specific "json" data type, but rather: 1. We don't need you to specify the types of any fields,
4.
by tudorb 8y ago
Then you really won't like it that we're moving in the opposite direction :) I personally like strong, static type systems. But a lot of real world data doesn't match static schemas, which is why businesses hire data engineer
5.
by tudorb 8y ago
That's on my TODO list, both in terms of performance and in terms of features / ease-of-use. (Another interesting thing to compare against is SQL++ ( https://ci.apache.org/projects/asterixdb/sqlpp/man
6.
by tudorb 8y ago
Yes. In our case, though, Rockset is not a transactional database, but a query engine on top of existing data, so we're not the right place to enforce constraints anyway.
7.
by tudorb 8y ago
> But some languages have a stronger type system with, in addition, highly qualified types (e.g. constness, range, sign or any custom contract). Sure. Those are overly simplistic categories, but a full discussion of type systems in progr
8.
by tudorb 11y ago
And operator"" _obfuscated1 has a serious bug, as it returns a temporary buffer allocated on the stack.
9.
by tudorb 12y ago
For now, this requires LuaJIT 2.0+, Linux x86_64.
10.
TH++(C++ tensor library), FBLuaLib (Torch / Lua components)(facebook.com)
5 points by tudorb 12y ago|2 comments
11.
by tudorb 14y ago
Now with discussion group: https://groups.google.com/d/forum/facebook-folly
12.
by tudorb 14y ago
Not the main purpose, obviously, but if you find any bugs, I'll be more than happy to take a look.
13.
by tudorb 14y ago
folly::small_vector does just that (and it lets you use one bit for a mutex, too! -- we have a lot of memory-constrained apps so we had to design data structures for them). We might unify that with fbvector eventually.
14.
by tudorb 14y ago
I'm Tudor, one of the main folly authors. I wrote format, Arena / ThreadCachedArena, DiscriminatedPtr, GroupVarint, TimeoutQueue, and various other pieces (parts of String.h, ThreadLocal, etc), and I'm pretty well-versed with the entire lib