- 增加 DuckDB 数据库支持；

Providers/FreeSql.Provider.Duckdb/DuckdbExtensions.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Linq.Expressions;
+using FreeSql;
+using FreeSql.Duckdb.Curd;
+
+public static partial class FreeSqlDuckdbGlobalExtensions
+{
+
+    /// <summary>
+    /// 特殊处理类似 string.Format 的使用方法，防止注入，以及 IS NULL 转换
+    /// </summary>
+    /// <param name="that"></param>
+    /// <param name="args"></param>
+    /// <returns></returns>
+    public static string FormatDuckdb(this string that, params object[] args) => _duckdbAdo.Addslashes(that, args);
+    static FreeSql.Duckdb.DuckdbAdo _duckdbAdo = new FreeSql.Duckdb.DuckdbAdo();
+}