[I] ORDER BY is ignored when COPYing from an arrow table to a csv file [arrow-datafusion]

["progval (via GitHub)" <gi...@apache.org>]

progval opened a new issue, #9463:
URL: https://github.com/apache/arrow-datafusion/issues/9463

   ### Describe the bug
   
   ORDER BY is ignored when COPYing from an arrow table to a csv file.
   
   I found this behavior on both `MemTable` and tables created from ORC files with `pyarrow`.
   
   ### To Reproduce
   
   ```rust
   use std::sync::Arc;
   use datafusion::arrow::array::PrimitiveArray;
   use datafusion::arrow::datatypes::{DataType, Field, Schema, Int64Type};
   use datafusion::arrow::record_batch::RecordBatch;
   use datafusion::prelude::*;
   use datafusion::datasource::MemTable;
   
   #[tokio::main]
   async fn main() {
       let ctx = SessionContext::new();
   
       let schema = Arc::new(Schema::new(vec![Field::new("value", DataType::Int64, false)]));
       let column: PrimitiveArray<Int64Type> = vec![2, 1, 3].into();
       let partition = RecordBatch::try_new(schema.clone(), vec![Arc::new(column)]).unwrap();
       let table = MemTable::try_new(schema, vec![vec![partition]]).unwrap();
       ctx.register_table("content", Arc::new(table)).unwrap();
   
       let df = ctx.sql("COPY (SELECT value FROM content) TO '/tmp/output.csv'").await.unwrap();
       df.collect().await.unwrap();
   }
   ```
   
   Outputs:
   
   ```
   value
   2
   1
   3
   ```
   
   ### Expected behavior
   
   Output should be:
   
   ```                            
   value
   1
   2
   3
   ```
   
   ### Additional context
   
   _No response_


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Re: [I] ORDER BY is ignored when COPYing from an arrow table to a csv file [arrow-datafusion]

["progval (via GitHub)" <gi...@apache.org>]

progval commented on issue #9463:
URL: https://github.com/apache/arrow-datafusion/issues/9463#issuecomment-1978412625

   Nevermind, I forgot to add `ORDER BY` while creating this repro code. Sorry


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Re: [I] ORDER BY is ignored when COPYing from an arrow table to a csv file [arrow-datafusion]

["progval (via GitHub)" <gi...@apache.org>]

progval closed issue #9463: ORDER BY is ignored when COPYing from an arrow table to a csv file
URL: https://github.com/apache/arrow-datafusion/issues/9463


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