arrow-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Andy Grove <>
Subject [Rust] Table/DataFrame style API
Date Thu, 14 Mar 2019 23:00:25 GMT

I have a PR open [1] to add a DataFrame/Table style API for building a
logical query plan. So far I only added a couple methods to it, but here is
a usage example:

let t = ctx.table("aggregate_test_100")?;

let t2 = t
  .select_columns(vec!["c1", "c2", "c11"])?

This builds the same logical plan as "SELECT c1, c2, c11 FROM
aggregate_test_100 LIMIT 10".

Adding more methods is mostly trivial but I wanted to get this initial PR
merged first so that I can add new methods as small separate PRs.

I'd appreciate some reviews if anyone has the bandwidth.




  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message