Comment by aub3bhat
9 years ago
Did you even read it? Presto reads directly from HDFS, which is as close to distributed "flat files" as you can get. As far as "SQL being less capable than UNIX commands", you have got to be kidding me. SQL allows type checking, conversion, joins all of which are difficult if not impossible with grep | uniq | sort etc.
I read it.
>Presto allows querying data where it lives, including Hive, Cassandra, relational databases or even proprietary data stores. A single Presto query can combine data from multiple sources, allowing for analytics across your entire organization.
That doesn't sound like HDFS to me. I mean, I assume it can read from HDFS, but Presto is backend agnostic. You could probably write code to run it on Manta. That would be neat for people who like Presto, I guess.
Type checking and conversions, no, and table joins only matter when you're handling relational data.
Also, how many formats can Presto handle? Unix utilities can handle just about any tabular data, and you can run them against non-tabular data in a pinch (although nobody reccomends it). I doubt Presto is that versitile.
Hive operates on top of HDFS.
Presto absolutley runs directly on HDFS.
Huh. Well then, I don't understand HDFS, or Facebook needs to fix Presto's front page. Both are reasonably likely.