saikrishna1-bidgely commented on code in PR #4908:
URL: https://github.com/apache/arrow-datafusion/pull/4908#discussion_r1103835352
##########
datafusion/core/src/execution/context.rs:
##########
@@ -613,50 +615,29 @@ impl SessionContext {
/// [`read_table`](Self::read_table) with a [`ListingTable`].
async fn _read_type<'a>(
&self,
- table_path: impl AsRef<str>,
+ table_paths: Vec<impl AsRef<str>>,
options: impl ReadOptions<'a>,
) -> Result<DataFrame> {
- let table_path = ListingTableUrl::parse(table_path)?;
+ let table_paths = table_paths
+ .iter()
+ .map(ListingTableUrl::parse)
+ .collect::<Result<Vec<ListingTableUrl>>>()?;
let session_config = self.copied_config();
let listing_options = options.to_listing_options(&session_config);
let resolved_schema = match options
- .get_resolved_schema(&session_config, self.state(),
table_path.clone())
+ .get_resolved_schema(&session_config, self.state(),
table_paths[0].clone())
.await
{
Ok(resolved_schema) => resolved_schema,
Err(e) => return Err(e),
};
- let config = ListingTableConfig::new(table_path)
+ let config = ListingTableConfig::new_with_multi_paths(table_paths)
.with_listing_options(listing_options)
.with_schema(resolved_schema);
let provider = ListingTable::try_new(config)?;
self.read_table(Arc::new(provider))
}
- /// Creates a [`DataFrame`] for reading an Avro data source.
- ///
- /// For more control such as reading multiple files, you can use
- /// [`read_table`](Self::read_table) with a [`ListingTable`].
- pub async fn read_avro(
- &self,
- table_path: impl AsRef<str>,
- options: AvroReadOptions<'_>,
- ) -> Result<DataFrame> {
- self._read_type(table_path, options).await
- }
Review Comment:
The generic method would have a constraint on P as `P: DataFilePaths`. When
we call the method `read_csv("path", options)` we will have to use the `use
..DataFilePaths` so that rust knows the trait `DataFilePaths` is implemented
for string. Is this what you meant?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
