Passthrough all parameters directly to pgx

stdlib/sql.go

@@ -373,6 +373,11 @@ func (c *Conn) Ping(ctx context.Context) error {
 	return c.conn.Ping(ctx)
 }
 
+func (c *Conn) CheckNamedValue(*driver.NamedValue) error {
+	// Underlying pgx supports sql.Scanner and driver.Valuer interfaces natively. So everything can be passed through directly.
+	return nil
+}
+
 type Stmt struct {
 	sd   *pgconn.StatementDescription
 	conn *Conn

stdlib/sql_test.go

@@ -321,6 +321,15 @@ func TestConnQueryFailure(t *testing.T) {
 	})
 }
 
+func TestConnSimpleSlicePassThrough(t *testing.T) {
+	testWithAndWithoutPreferSimpleProtocol(t, func(t *testing.T, db *sql.DB) {
+		var n int64
+		err := db.QueryRow("select cardinality($1::text[])", []string{"a", "b", "c"}).Scan(&n)
+		require.NoError(t, err)
+		assert.EqualValues(t, 3, n)
+	})
+}
+
 // Test type that pgx would handle natively in binary, but since it is not a
 // database/sql native type should be passed through as a string
 func TestConnQueryRowPgxBinary(t *testing.T) {