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DataFusion queries
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Came across DataFusion as a composable query engine.I am planning to use it to query data from multiple sources via SQL:

- in memory arrow buffer
- parquet(s)

The data could be duplicated across sources, so I also want to give preference to data sources in case of collision.

  1. How could I do it in DataFusion itself?
  2. Does DataFusion maintain some kind of buffer pool like relational engines?

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11 months ago