yjshen commented on a change in pull request #1120:
URL: https://github.com/apache/arrow-datafusion/pull/1120#discussion_r730341944
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File path: datafusion/src/physical_plan/file_format/parquet.rs
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@@ -59,14 +60,12 @@ use tokio::{
use async_trait::async_trait;
-use crate::datasource::{FilePartition, PartitionedFile};
-
/// Execution plan for scanning one or more Parquet partitions
#[derive(Debug, Clone)]
pub struct ParquetExec {
object_store: Arc<dyn ObjectStore>,
- /// Parquet partitions to read
- partitions: Vec<ParquetPartition>,
+ /// List of parquet files, grouped by output partition
Review comment:
"output partition" is vague here.
`file_group`, i.e. `Vec<PartitionedFile>`, is the unit of parallelism and
will be processed by one single executor/thread.
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