From 760aebfe3de4166eecd06dfc2f6bbd06e2637095 Mon Sep 17 00:00:00 2001
From: yongshige <598633031@qq.com>
Date: Wed, 26 Apr 2023 14:10:43 +0000
Subject: [PATCH] fix not null bug

---
 src/observer/table_load/ob_table_load_trans_store.cpp | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/observer/table_load/ob_table_load_trans_store.cpp b/src/observer/table_load/ob_table_load_trans_store.cpp
index dc8872753e..ff94b7c068 100644
--- a/src/observer/table_load/ob_table_load_trans_store.cpp
+++ b/src/observer/table_load/ob_table_load_trans_store.cpp
@@ -362,9 +362,11 @@ int ObTableLoadTransStoreWriter::cast_row(ObArenaAllocator &cast_allocator,
     const ObColumnSchemaV2 *column_schema = column_schemas_.at(i);
     ObCastCtx cast_ctx(&cast_allocator, &cast_params, CM_NONE, column_schema->get_collation_type());
     ObTableLoadCastObjCtx cast_obj_ctx(param_, &time_cvrt_, &cast_ctx, true);
-    if ((!row.cells_[i].is_null()) &&
-        OB_FAIL(
-          ObTableLoadObjCaster::cast_obj(cast_obj_ctx, column_schema, row.cells_[i], out_obj))) {
+    const bool is_null_autoinc =
+      (column_schema->is_autoincrement() || column_schema->is_identity_column()) &&
+      row.cells_[i].is_null();
+    if (!is_null_autoinc && OB_FAIL(ObTableLoadObjCaster::cast_obj(cast_obj_ctx, column_schema,
+                                                                   row.cells_[i], out_obj))) {
       LOG_WARN("fail to cast obj and check", KR(ret), K(i), K(row.cells_[i]));
     } else if (OB_FAIL(datum_row.storage_datums_[i].from_obj_enhance(out_obj))) {
       LOG_WARN("fail to from obj enhance", KR(ret), K(out_obj));