Vertica Blog

Vertica Blog

Live Aggregate Projections

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How to Use UDx to Extend Vertica Live Aggregate Projections

Maurizio Felici, Field Chief Technologist
August 8, 2023

Thanks to its sophisticated optimizer and extremely efficient query engine Vertica can process data aggregations order of magnitudes faster than traditional Database Management Systems. To further boost data aggregation performance, we can use Vertica’s Live Aggregate Projections (LAP from now on). The concept is very simple: pre-aggregate data once during load operations rather than doing...
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Vertica 9.3 Supports UPDATE and DELETE Operations on Tables Having Live Aggregate Projections!

James Knicely, Vertica Field Chief Technologist
October 17, 2019

A live aggregate projection contains columns with values that are aggregated from columns in its anchor table. When you load data into the table, Vertica aggregates the data before loading it into the live aggregate projection. On subsequent loads (for example, through INSERT or COPY) Vertica recalculates aggregations with the new data and updates the...