[GENERAL] Data warehouse & OLAP

hi,

I'm working in the implementation of a datawarehouse on Postgres.

For analisys of aggregated data I'd like to use some OLAP tools like for example, Mondrian, OR use the meterialized view (if better).

My questions:

is there any documentation about warehouse (with OLAP or materialized view) on Postgres?

Which is better? OLAP tools (I think) or materialized view?

Any information is welcome!

Thanks

Stefano

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