yarenty opened a new issue, #894:
URL: https://github.com/apache/arrow-ballista/issues/894
**Describe the bug**
Since the update to Datafusion 30 ( rev:
7d774481aedc027b7f68226b2c3a4fc0db959fc2 )
as Dataframe moved to use LogicalPlan::Copy when executing write (csv,
parquet,json)
df. write_xxx is no longer working in Ballista.
**To Reproduce**
One can use any sql and then df.write ie: in examples standalone_sql.rs add
write_csv() instead show():
```
let df = ctx.sql("select count(1) from test").await?;
df.write_csv("output.csv", DataFrameWriteOptions::default(),
None).await?;
```
`cargo run --example standalone_sql`
Output:
```
Error: DataFusionError(Internal("failed to serialize logical plan:
Internal(\"LogicalPlan serde is not yet implemented for Copy\")"))
```
**Expected behavior**
File created.
**Additional context**
See PR: https://github.com/apache/arrow-datafusion/pull/7283
Looks like this is todo - there are no serde / proto changes in datafusion.
*Question: should I ask about it in datafusion repo ?*
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