OussamaSaoudi commented on code in PR #12981:
URL: https://github.com/apache/datafusion/pull/12981#discussion_r1816128823


##########
datafusion/core/src/execution/context/mod.rs:
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@@ -114,17 +114,20 @@ impl DataFilePaths for &String {
     }
 }
 
-impl<P> DataFilePaths for Vec<P>
-where
-    P: AsRef<str>,
-{
+impl DataFilePaths for Vec<&str> {

Review Comment:
   Hmm I think this may fail since `AsRef<str>` doesn't 
imply`Into<ListingTableUrl>`. It has to go through a `ListingTableUrl::parse`, 
which is fallible. 
   
   I'll give it some more thought and play with the types. Perhaps I'll try to 
change how `SessionContext::read_parquet` handles `AsRef<str>` and 
`ListingTableUrl`. 



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