- 优化 Contains 表达式解析为 where in 自动拆分，防止大于 1000 的 SQL 错误；

FreeSql/Internal/CommonProvider/AdoProvider/AdoProviderUtils.cs

@@ -1,6 +1,8 @@
 using FreeSql.Internal.Model;
 using System;
+using System.Collections;
 using System.Collections.Concurrent;
+using System.Text;
 using System.Text.RegularExpressions;
 
 namespace FreeSql.Internal.CommonProvider
@@ -23,5 +25,24 @@ namespace FreeSql.Internal.CommonProvider
             try { string ret = string.Format(filter, nparms); return ret; } catch { return filter; }
         }
         static ConcurrentDictionary<int, Regex> _dicAddslashesReplaceIsNull = new ConcurrentDictionary<int, Regex>();
+
+        protected string AddslashesIEnumerable(object param, Type mapType, ColumnInfo mapColumn)
+        {
+            var sb = new StringBuilder();
+            var ie = param as IEnumerable;
+            var idx = 0;
+            foreach (var z in ie)
+            {
+                sb.Append(",");
+                if (++idx > 500)
+                {
+                    sb.Append("   \r\n    \r\n"); //500元素分割, 3空格\r\n4空格
+                    idx = 1;
+                }
+                sb.Append(AddslashesProcessParam(z, mapType, mapColumn));
+            }
+
+            return sb.Length == 0 ? "(NULL)" : sb.Remove(0, 1).Insert(0, "(").Append(")").ToString();
+        }
     }
 }