Method alter_table

crates/integrations/datafusion/src/sql_context.rs:2435–2447

(
            &self,
            identifier: &Identifier,
            changes: Vec<SchemaChange>,
            ignore_if_not_exists: bool,
        )

            Ok(())
        }
        async fn alter_table(
            &self,
            identifier: &Identifier,
            changes: Vec<SchemaChange>,
            ignore_if_not_exists: bool,
        ) -> paimon::Result<()> {
            self.calls.lock().unwrap().push(CatalogCall::AlterTable {
                identifier: identifier.clone(),
                changes,
                ignore_if_not_exists,
            });
            Ok(())
        }
    }

    async fn make_sql_context(catalog: Arc<MockCatalog>) -> SQLContext {