Forum OpenACS Q&A: Re: Curious what reporting / BI / Dashboard solutions people here use?

Another tool worth mentioning is

Its pros are a very mild learning curve, support for many libraries and tools (R, weka...) and nice GUI. It is open source and cross platform (based on Eclipse) and can connect to a variety of data sources including postgres.

I have used it for some projects with good satisfaction. This said, Talend or other tools capable of compiling their workflow are probably better performance wise.