delta-io/delta

[Feature Request] Support additional generation expressions for automatic data skipping

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#1442 aperta il 18 ott 2022

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 (5 commenti) (0 reazioni) (0 assegnatari)Scala (2100 fork)batch import
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Descrizione

Overview

For partition columns that are generated columns, we are able to automatically generate partition filters when we see a data filter on its generating columns. Right now we automatically generate these for a small subset of possible generation expressions (defined here.)

Details

We can add support for additional expressions. Here are the supported generation expressions in Delta.

A few specific expressions that would make sense to add include:

These are just a few, feel free to comment or create a new sub-issue for any additional expressions you think would be beneficial.

What to update?

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