From bf7cfe9bf17b8826a76c2d0abfa9490b4d455847 Mon Sep 17 00:00:00 2001
From: Joseph Doherty <dohertj2@Josephs-MacBook-Pro.local>
Date: Sat, 3 Jan 2026 16:11:00 -0500
Subject: [PATCH] feat(datasync): add JsonColumnSchema record for ETL column
 metadata

---
 .../Etl/Models/JsonColumnSchema.cs            | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 NEW/src/JdeScoping.DataSync/Etl/Models/JsonColumnSchema.cs

diff --git a/NEW/src/JdeScoping.DataSync/Etl/Models/JsonColumnSchema.cs b/NEW/src/JdeScoping.DataSync/Etl/Models/JsonColumnSchema.cs
new file mode 100644
index 0000000..2183968
--- /dev/null
+++ b/NEW/src/JdeScoping.DataSync/Etl/Models/JsonColumnSchema.cs
@@ -0,0 +1,25 @@
+namespace JdeScoping.DataSync.Etl.Models;
+
+/// <summary>
+/// Defines a column schema for JSON-to-DataReader mapping.
+/// </summary>
+public record JsonColumnSchema(
+    string Name,
+    Type ClrType,
+    bool IsNullable = true)
+{
+    /// <summary>
+    /// Gets the SQL type name for this column (used in error messages).
+    /// </summary>
+    public string SqlTypeName => ClrType switch
+    {
+        Type t when t == typeof(string) => "VARCHAR",
+        Type t when t == typeof(int) => "INT",
+        Type t when t == typeof(long) => "BIGINT",
+        Type t when t == typeof(decimal) => "DECIMAL",
+        Type t when t == typeof(DateTime) => "DATETIME2",
+        Type t when t == typeof(bool) => "BIT",
+        Type t when t == typeof(byte[]) => "VARBINARY",
+        _ => "UNKNOWN"
+    };
+}