Can i query the database directly?

Would querying the database manually, rather than using the reporting API, provide any change in performance. It definitely will provide better information for us since, reporting modules have no option to show other columns from another module despite them definitely being joined. For example i am querying a custom dimension that has a segment of event, all that the reporting returns to me is custom dimension stuff (which makes sense since its the custom dimension api module) but ideally i would like it to show certain event info too.

Is there a way we can query the database directly?

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