adriangb commented on code in PR #21965:
URL: https://github.com/apache/datafusion/pull/21965#discussion_r3196462782
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datafusion/core/src/datasource/listing_table_factory.rs:
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@@ -309,6 +309,10 @@ mod tests {
#[tokio::test]
async fn test_create_using_folder_with_compression() {
let dir = tempfile::tempdir().unwrap();
+ // Schema inference now requires at least one file at the location.
+ // The file itself can be 0-byte — it will be filtered out before the
+ // format-specific inference runs, leaving an empty inferred schema.
+ fs::File::create_new(dir.path().join("placeholder.csv.gz")).unwrap();
Review Comment:
I think 8e72ad8 is what you meant, lmk if not
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