fix bug and sqlx prepare

.sqlx/query-48fd98db66a68865babe4ac6a453de747bba2ce1da198dda4b6f3b78eacfebf3.json

@@ -0,0 +1,40 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "SELECT username, email FROM users WHERE pid = $1",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "username",
+        "type_info": "Varchar",
+        "origin": {
+          "Table": {
+            "table": "users",
+            "name": "username"
+          }
+        }
+      },
+      {
+        "ordinal": 1,
+        "name": "email",
+        "type_info": "Varchar",
+        "origin": {
+          "Table": {
+            "table": "users",
+            "name": "email"
+          }
+        }
+      }
+    ],
+    "parameters": {
+      "Left": [
+        "Int4"
+      ]
+    },
+    "nullable": [
+      false,
+      false
+    ]
+  },
+  "hash": "48fd98db66a68865babe4ac6a453de747bba2ce1da198dda4b6f3b78eacfebf3"
+}

.sqlx/query-6c276038b92bef06b30da32dab42256be431b361cfd36754aa41b6da220618cc.json

@@ -0,0 +1,15 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "UPDATE users SET password = $1 WHERE pid = $2",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Varchar",
+        "Int4"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "6c276038b92bef06b30da32dab42256be431b361cfd36754aa41b6da220618cc"
+}