Vertica Blog

Vertica Blog


A key with a key hole and Unlock Vertica Potential in text at the bottom

How to Use UDx to Extend Vertica Live Aggregate Projections

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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Extending Vertica with Python functions: Adding NumPy FFT as a UDx

User-Defined Transform Function (UDTF) support for Python UDx were added back in Vertica 9.1, allowing you to add a much greater range of existing libraries and functions to Vertica. In this example, I'll add Fast Fourier Transform (FFT) from the NumPy package. FFT is a way to transform time-domain data into frequency-domain data. My test...