epgif commented on code in PR #16401:
URL: https://github.com/apache/datafusion/pull/16401#discussion_r2155260272
##########
datafusion/catalog/src/schema.rs:
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@@ -54,6 +55,14 @@ pub trait SchemaProvider: Debug + Sync + Send {
name: &str,
) -> Result<Option<Arc<dyn TableProvider>>, DataFusionError>;
+ /// Retrieves the type of a specific table from the schema by name, if it
exists, otherwise
+ /// returns `None`. Implementations for which this operation is cheap but
[Self::table] is
+ /// expensive can override this to improve operations that only need the
type, e.g.
+ /// `SELECT * FROM information_schema.tables`.
+ async fn table_type(&self, name: &str) -> Result<Option<TableType>,
DataFusionError> {
Review Comment:
All references in the test are also already `datafusion_common::Result`,
thanks to `use super::*`. However, as before, this one can be simplified as
`DataFusionError` is already the default. The only reason the code I added is
like that is it's copied and pasted from what is already here.
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