diff --git a/deploy/dsync.py b/deploy/dsync.py
index 8f6732d..56f3400 100644
--- a/deploy/dsync.py
+++ b/deploy/dsync.py
@@ -104,12 +104,15 @@ def select_domains(defn, wanted):
 
 
 def pk_cols(conn, table):
+    # 主键约束名是 'PRIMARY'（MySQL/MariaDB 同）——写成 'PRIMARY KEY' 恒查空，
+    # 主键列表为空会让 upsert 全走 INSERT 撞 1062（2026-09-09 测试机实测抓到）
     with conn.cursor() as cur:
         cur.execute(
             "SELECT column_name FROM information_schema.key_column_usage "
-            "WHERE table_schema=DATABASE() AND table_name=%s AND constraint_name='PRIMARY KEY' "
+            "WHERE table_schema=DATABASE() AND table_name=%s AND constraint_name='PRIMARY' "
             "ORDER BY ordinal_position", (table,))
-        return [r["column_name"] if "column_name" in r else r["COLUMN_NAME"] for r in cur.fetchall()]
+        rows = cur.fetchall()
+        return [(r.get("column_name") or r.get("COLUMN_NAME")) for r in rows]
 
 
 def table_cols(conn, table):
@@ -297,31 +300,37 @@ def cmd_import(pkg_file, dry_run=False):
         pk = pk_cols(conn, tbl)
         tcols = set(table_cols(conn, tbl))
         n_i = n_u = n_o = 0
-        for row in meta["rows"]:
-            if org_col and str(row.get(org_col) or "") not in orgs:
-                n_o += 1
-                stats["org_skipped"] += 1
-                continue
-            if dry_run:
-                # 预演也查存在性，给出准确的新增/更新预估
-                ex = False
-                if pk:
-                    where = " AND ".join("`%s`=%%s" % c for c in pk)
-                    with conn.cursor() as cur:
-                        cur.execute("SELECT 1 FROM `%s` WHERE %s LIMIT 1" % (tbl, where),
-                                    tuple(str(row.get(c, "")) for c in pk))
-                        ex = cur.fetchone() is not None
-                if ex:
-                    n_u += 1
-                else:
+        try:
+            for row in meta["rows"]:
+                if org_col and str(row.get(org_col) or "") not in orgs:
+                    n_o += 1
+                    stats["org_skipped"] += 1
+                    continue
+                if dry_run:
+                    # 预演也查存在性，给出准确的新增/更新预估
+                    ex = False
+                    if pk:
+                        where = " AND ".join("`%s`=%%s" % c for c in pk)
+                        with conn.cursor() as cur:
+                            cur.execute("SELECT 1 FROM `%s` WHERE %s LIMIT 1" % (tbl, where),
+                                        tuple(str(row.get(c, "")) for c in pk))
+                            ex = cur.fetchone() is not None
+                    if ex:
+                        n_u += 1
+                    else:
+                        n_i += 1
+                    continue
+                res = upsert_row(conn, tbl, pk, row, tcols)
+                stats[res if res in stats else "skipped"] += 1
+                if res == "inserted":
                     n_i += 1
-                continue
-            res = upsert_row(conn, tbl, pk, row, tcols)
-            stats[res if res in stats else "skipped"] += 1
-            if res == "inserted":
-                n_i += 1
-            elif res == "updated":
-                n_u += 1
+                elif res == "updated":
+                    n_u += 1
+        except Exception as e:
+            # 任何未捕获异常都显式 ROLLBACK——绝不靠进程退出隐式回滚（连接可能泄漏未提交事务持 MDL 锁）
+            conn.rollback()
+            conn.close()
+            die("导入表 %s 失败，已 ROLLBACK: %s" % (tbl, str(e)[:300]))
         print("  %-24s 新增%d 更新%d%s" % (tbl, n_i, n_u,
                                           (" 机构过滤跳过%d" % n_o) if n_o else ""))