fix unexpected error log in ObMacroBlockWriter when creating unique index

src/storage/blocksstable/ob_macro_block.cpp

@@ -264,6 +264,7 @@ void ObDataStoreDesc::reset()
   progressive_merge_round_ = 0;
   major_working_cluster_version_ = 0;
   iter_complement_ = false;
+  is_unique_index_ = false;
 }
 
 int ObDataStoreDesc::assign(const ObDataStoreDesc& desc)
@@ -303,6 +304,7 @@ int ObDataStoreDesc::assign(const ObDataStoreDesc& desc)
   pg_key_ = desc.pg_key_;
   need_check_order_ = desc.need_check_order_;
   major_working_cluster_version_ = desc.major_working_cluster_version_;
+  is_unique_index_ = desc.is_unique_index_;
   if (OB_FAIL(file_handle_.assign(desc.file_handle_))) {
     STORAGE_LOG(WARN, "failed to assign file handle", K(ret), K(desc.file_handle_));
   }

src/storage/blocksstable/ob_macro_block.h

@@ -74,6 +74,7 @@ struct ObDataStoreDesc {
   // which still use freezeinfo without cluster version
   int64_t major_working_cluster_version_;
   bool iter_complement_;
+  bool is_unique_index_;
   common::ObArenaAllocator allocator_;
   
   ObDataStoreDesc()
@@ -103,7 +104,7 @@ struct ObDataStoreDesc {
       K_(store_micro_block_column_checksum), K_(snapshot_version), K_(need_calc_physical_checksum), K_(need_index_tree),
       K_(need_prebuild_bloomfilter), K_(bloomfilter_rowkey_prefix), KP_(rowkey_helper), "column_types",
       common::ObArrayWrap<common::ObObjMeta>(column_types_, row_column_count_), K_(pg_key), K_(file_handle),
-      K_(need_check_order), K_(need_index_tree), K_(major_working_cluster_version), K_(iter_complement));
+      K_(need_check_order), K_(need_index_tree), K_(major_working_cluster_version), K_(iter_complement), K_(is_unique_index));
 
 private:
   int cal_row_store_type(const share::schema::ObTableSchema& table_schema, const storage::ObMergeType merge_type);

src/storage/blocksstable/ob_macro_block_writer.cpp

@@ -851,8 +851,13 @@ int ObMacroBlockWriter::check_order(const ObStoreRow& row)
         } else {
           // baseline data
           ret = OB_ERR_PRIMARY_KEY_DUPLICATE;
+          if (data_store_desc_->is_unique_index_) {
+            STORAGE_LOG(
+                WARN, "input rowkey is equal with last rowkey in unique index", K(cur_key), K(last_key), K(ret));
+          } else {
             STORAGE_LOG(ERROR, "input rowkey is equal with last rowkey", K(cur_key), K(last_key), K(ret));
           }
+        }
       } else {
         // normal case
         if (need_deletion_check_) {

src/storage/ob_build_index_task.cpp

@@ -825,6 +825,7 @@ int ObIndexMergeTask::add_build_index_sstable(const ObBuildIndexParam& param,
                  pg->get_partition_key(),
                  pg->get_storage_file_handle()))) {
     STORAGE_LOG(WARN, "Fail to init data store desc, ", K(ret));
+  } else if (FALSE_IT(data_desc_.is_unique_index_ = param.index_schema_->is_unique_index())) {
   } else if (OB_FAIL(writer_.open(data_desc_, macro_start_seq))) {
     STORAGE_LOG(WARN, "Fail to open macro block writer, ", K(ret));
   } else {