diff --git a/library/think/Validate.php b/library/think/Validate.php
index 69384667..1df14f11 100644
--- a/library/think/Validate.php
+++ b/library/think/Validate.php
@@ -165,7 +165,7 @@ class Validate
     }
 
     /**
-     * 获取验证规则的默认提示信息
+     * 设置验证规则的默认提示信息
      * @access protected
      * @param string|array  $type  验证规则类型名称或者数组
      * @param string        $msg  验证提示信息
diff --git a/library/think/db/Builder.php b/library/think/db/Builder.php
index ecec0b0e..23f88836 100644
--- a/library/think/db/Builder.php
+++ b/library/think/db/Builder.php
@@ -376,7 +376,7 @@ abstract class Builder
             if ($value instanceof \Closure) {
                 $whereStr .= $key . ' ' . $exp . ' ' . $this->parseClosure($value);
             } else {
-                $value = is_array($value) ? $value : explode(',', $value);
+                $value = array_unique(is_array($value) ? $value : explode(',', $value));
                 if (array_key_exists($field, $binds)) {
                     $bind  = [];
                     $array = [];
diff --git a/library/think/db/Query.php b/library/think/db/Query.php
index b08436cd..a8722a1a 100644
--- a/library/think/db/Query.php
+++ b/library/think/db/Query.php
@@ -395,7 +395,7 @@ class Query
     public function value($field, $default = null, $force = false)
     {
         $result = false;
-        if (empty($options['fetch_sql']) && !empty($this->options['cache'])) {
+        if (empty($this->options['fetch_sql']) && !empty($this->options['cache'])) {
             // 判断查询缓存
             $cache = $this->options['cache'];
             if (empty($this->options['table'])) {
@@ -438,7 +438,7 @@ class Query
     public function column($field, $key = '')
     {
         $result = false;
-        if (empty($options['fetch_sql']) && !empty($this->options['cache'])) {
+        if (empty($this->options['fetch_sql']) && !empty($this->options['cache'])) {
             // 判断查询缓存
             $cache = $this->options['cache'];
             if (empty($this->options['table'])) {