Made small use corrections

Author: chandr-andr

src/driver/inner_connection.rs

@@ -1,7 +1,7 @@
 use bytes::Buf;
-use deadpool_postgres::Object;
+use deadpool_postgres::{Object, Transaction};
 use postgres_types::{ToSql, Type};
-use pyo3::{Py, PyAny, Python};
+use pyo3::{pyclass, Py, PyAny, Python};
 use std::vec;
 use tokio_postgres::{Client, CopyInSink, Row, Statement, ToStatement};
 
@@ -18,6 +18,11 @@ pub enum PsqlpyConnection {
     SingleConn(Client),
 }
 
+// #[pyclass]
+// struct Portal {
+//     trans: Transaction<'static>,
+// }
+
 impl PsqlpyConnection {
     /// Prepare cached statement.
     ///
@@ -38,6 +43,25 @@ impl PsqlpyConnection {
         }
     }
 
+    // pub async fn transaction(&mut self) -> Portal {
+    //     match self {
+    //         PsqlpyConnection::PoolConn(pconn, _) => {
+    //             let b = unsafe {
+    //                 std::mem::transmute::<Transaction<'_>, Transaction<'static>>(pconn.transaction().await.unwrap())
+    //             };
+    //             Portal {trans: b}
+    //             // let c = b.bind("SELECT 1", &[]).await.unwrap();
+    //             // b.query_portal(&c, 1).await;
+    //         }
+    //         PsqlpyConnection::SingleConn(sconn) => {
+    //             let b = unsafe {
+    //                 std::mem::transmute::<Transaction<'_>, Transaction<'static>>(sconn.transaction().await.unwrap())
+    //             };
+    //             Portal {trans: b}
+    //         },
+    //     }
+    // }
+
     /// Delete prepared statement.
     ///
     /// # Errors