Rust: Add the original test back as well.

Author: geoffw0

rust/ql/test/library-tests/frameworks/postgres/main.rs

@@ -34,9 +34,16 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     for row in &conn.query("SELECT id, name, age FROM person", &[])? {  // $ sql-sink
         let row: &postgres::Row = row;
-        let id: i32 = row.get("id");        // $ database-read
-        let name: &str = row.try_get("name")?;   // $ database-read
-        let age: i32 = row.try_get("age").unwrap();      // $ database-read
+        let id: i32 = row.get("id"); // $ database-read
+        let name: &str = row.try_get("name")?; // $ database-read
+        let age: i32 = row.try_get("age").unwrap(); // $ database-read
+        println!("found person: {} {} {}", id, name, age);
+    }
+
+    for row in &conn.query("SELECT id, name, age FROM person", &[])? {  // $ sql-sink
+        let id: i32 = row.get("id"); // $ MISSING: database-read
+        let name: &str = row.try_get("name")?; // $ MISSING: database-read
+        let age: i32 = row.try_get("age").unwrap(); // $ MISSING: database-read
         println!("found person: {} {} {}", id, name, age);
     }