capkurmagati commented on a change in pull request #1288:
URL: https://github.com/apache/arrow-datafusion/pull/1288#discussion_r748733755
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File path: datafusion/src/catalog/schema.rs
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@@ -101,4 +115,70 @@ impl SchemaProvider for MemorySchemaProvider {
let mut tables = self.tables.write().unwrap();
Ok(tables.remove(name))
}
+
+ fn table_exist(&self, name: &str) -> bool {
+ let tables = self.tables.read().unwrap();
+ tables.contains_key(name)
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ use crate::arrow::datatypes::SchemaRef;
+ use crate::catalog::schema::{MemorySchemaProvider, SchemaProvider};
+ use crate::datasource::TableProvider;
+ use crate::logical_plan::Expr;
+ use crate::physical_plan::ExecutionPlan;
+ use std::any::Any;
+ use std::sync::Arc;
+
+ use async_trait::async_trait;
+
+ #[tokio::test]
+ async fn test_mem_provider() {
+ struct TestTableProvider();
Review comment:
Is it necessary to create a test provider?
`EmptyTable` seems enough for the test. You could create a dummy table using
`EmptyTable::new(Arc::new(Schema::empty()))`.
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