Paddy Horan created ARROW-8197:
----------------------------------
Summary: [Rust] DataFusion "create_physical_plan" returns
incorrect schema?
Key: ARROW-8197
URL: https://issues.apache.org/jira/browse/ARROW-8197
Project: Apache Arrow
Issue Type: Bug
Components: Rust, Rust - DataFusion
Affects Versions: 0.15.1
Reporter: Paddy Horan
I am using DataFusion in a situation where I know there will only be a single
file. DataFusion currently collects all batches into a vector.
As I am writing the data back out I want to work with an iterator instead of a
vector.
I have something as follows:
{code:java}
let plan = ctx.create_logical_plan(&sql).unwrap();
let plan = ctx.optimize(&plan).unwrap();
dbg!(plan.schema()); // Returns field names
let plan = ctx.create_physical_plan(&plan, batch_size).unwrap();
dbg!(plan.schema()); // Returns c0, c1, etc{code}
Maybe this is expected after turning the plan into a physical plan?
I can change the schema of the returned batches, would this be the recommended
way to address this or is their something in DataFusion I should leverage to do
this?
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
