diff --git a/src/next/jdbc/date_time.clj b/src/next/jdbc/date_time.clj
index de77456..642d767 100644
--- a/src/next/jdbc/date_time.clj
+++ b/src/next/jdbc/date_time.clj
@@ -33,8 +33,7 @@
   working with PostgreSQL."
   (:require [next.jdbc.prepare :as p]
             [next.jdbc.result-set :as rs])
-  (:import (java.sql PreparedStatement Timestamp)
-           (java.time Instant LocalDate LocalDateTime)))
+  (:import (java.sql PreparedStatement Timestamp)))
 
 (set! *warn-on-reflection* true)
 
diff --git a/src/next/jdbc/result_set.clj b/src/next/jdbc/result_set.clj
index 9aaaa5e..a87a12d 100644
--- a/src/next/jdbc/result_set.clj
+++ b/src/next/jdbc/result_set.clj
@@ -32,7 +32,7 @@
 (defn get-column-names
   "Given `ResultSetMetaData`, return a vector of column names, each qualified by
   the table from which it came."
-  [^ResultSetMetaData rsmeta opts]
+  [^ResultSetMetaData rsmeta _]
   (mapv (fn [^Integer i]
           (if-let [q (not-empty (.getTableName rsmeta i))]
             (keyword q (.getColumnLabel rsmeta i))
@@ -41,7 +41,7 @@
 
 (defn get-unqualified-column-names
   "Given `ResultSetMetaData`, return a vector of unqualified column names."
-  [^ResultSetMetaData rsmeta opts]
+  [^ResultSetMetaData rsmeta _]
   (mapv (fn [^Integer i] (keyword (.getColumnLabel rsmeta i)))
         (range 1 (inc (.getColumnCount rsmeta)))))
 
@@ -757,7 +757,7 @@
   [connectable opts]
   (fn [row]
     (with-meta row
-      {`core-p/nav (fn [coll k v]
+      {`core-p/nav (fn [_ k v]
                      (try
                        (let [[table fk cardinality]
                              (expand-schema k (or (get-in opts [:schema k])