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Comment · 5 months ago
Comment · 5 months ago
Comment · 8 months ago
Now it is easy to use Power BI with a DuckDB server you can self-host: GizmoSQL. Powered by Arrow Flight SQL - you can run terabyte-scale analytics for dirt-cheap...
Comment · 11 months ago
Oh, and GizmoData Cloud (SaaS option) is coming soon - to make it easier than ever to provision GizmoSQL instances...
Comment · 11 months ago
Comment · 1 year ago
good point :) - we can re-aggregate HyperLogLog (HLL) sketches to get a pretty accurate NDV (Count Distinct) - see Query.farm's DataSketches DuckDB extension here: https://github.com/Query-farm/datasketches

We also have Bitmap aggregation capabilities for exact count distinct - something I worked with Oracle, Snowflake, Databricks, and DuckDB labs on implementing. It isn't as fast as HLL - but it is 100% accurate...

Comment · 1 year ago
hi sdairs, we did store the data on the worker nodes for the challenge, but not in memory. We wrote the data to the local NVMe SSD storage on the node. Linux may cache the filesystem data, but we didn't load the data directly into memory. We like to preserve the memory for aggregations, joins, etc. as much as possible...

It is true you would need to run the instance(s) 24/7 to get the performance all day, the startup time over a couple minutes is not ideal. We have a lot of work to do on the engine, but it has been a fun learning experience...

Comment · 1 year ago
Comment · 1 year ago

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