[trungaczne]

Isn't MonetDB a columnar store? They did benchmark against MonetDB.

Edit: MemSQL too is a columnar store

[slagfart]

I stand corrected!

Edit: However, the reference states "At this time (May 2016), there aren't any available open-source and free systems that have all the features listed above". Greenplum does actually implement all of these features, and is open source. I guess I just take issue with all the hyperbole in use.

[blahi]

You managed to check all of their docs already? Because as far as I know greenplum doesn't have incremental aggregation.

[slagfart]

"Incremental Aggregation" is just UPDATE (new value = old value + JOIN value), right? If so, yes :)

[blahi]

Yeah... do you have ANY experience with column stores?

[jaytaylor]

Link to greenplum db src code: https://github.com/greenplum-db/gpdb