From 51c3f2639c8f3b73592ae493787e36421df45684 Mon Sep 17 00:00:00 2001
From: "agent.develop" <agent.develop@hrs6.local>
Date: Mon, 21 Sep 2026 13:38:12 +0800
Subject: [PATCH] =?UTF-8?q?deliver:=20=E4=BA=A4=E4=BB=98=E6=94=B6=E5=8F=A3?=
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---
 scripts/m11b2c_a3_patch_tx_write.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/scripts/m11b2c_a3_patch_tx_write.py b/scripts/m11b2c_a3_patch_tx_write.py
index 7ac5aa8..71537b3 100644
--- a/scripts/m11b2c_a3_patch_tx_write.py
+++ b/scripts/m11b2c_a3_patch_tx_write.py
@@ -53,13 +53,14 @@ def _has_db_default(fd):
     写路径按语义不填它们；若计入必填集合，合法调用会被误报缺列。
     （与 _recognize nullable 写法配套：只修识别不修默认值排除，事件表主链路会被误挡。）
     """
+    if "default" not in fd:
+        return False
     dv = fd.get("default")
     if dv is None:
         return False
-    s = str(dv).strip()
-    if s == "" or s.upper() in ("NULL", "NONE"):
+    if str(dv).strip().upper() in ("NULL", "NONE"):
         return False
-    return True
+    return True   # 含 DEFAULT ''（空串默认值同样是 DDL 默认值，数据库会补值）
 
 
 def required_columns(table):