int ObGetScanProxy::get_compact_row(ObTablet& tablet,ObRowkey& rowkey,const int64_t compactsstable_version,
const ColumnFilter *cf,
ObScanner& compact_scanner)
{
int32_t compactsstable_num = tablet.get_compactsstable_num();
ObCompactSSTableMemNode* mem_node = tablet.get_compactsstable_list();
ObCompactMemIteratorArray *its = GET_TSI_MULT(ObCompactMemIteratorArray,TSI_CS_COMPACTSSTABLE_ITERATOR_1);
ObCompactSSTableMem* mem = NULL;
int ret = OB_SUCCESS;
int32_t m = 0;
uint64_t table_id = OB_INVALID_ID;
bool add_row_not_exist = false;
ObMerger merger;
for(m=0; (OB_SUCCESS == ret) &&
(mem_node != NULL) && (m < compactsstable_num); )
{
mem = &mem_node->mem_;
if (NULL == mem)
{
TBSYS_LOG(WARN,"unexpect error,compactsstable is null");
ret = OB_ERROR;
}
else if (ObVersion::compare(mem->get_data_version(),compactsstable_version) <= 0)
{
if (OB_INVALID_ID == table_id)
{
table_id = mem->get_table_id();
}
if (!mem->is_row_exist(rowkey))
{
//row not exists,do nothing
TBSYS_LOG(DEBUG,"row not exist,%s", to_cstring(rowkey));
add_row_not_exist = true;
}
else if ((ret = its->iters_[m].init(mem)) != OB_SUCCESS)
{
TBSYS_LOG(WARN,"init iterator failed,ret=%d",ret);
}
else if ((ret = its->iters_[m].set_get_param(rowkey,cf)) != OB_SUCCESS)
{
TBSYS_LOG(WARN,"set get param failed,ret=%d",ret);
}
else if ((ret = merger.add_iterator(&(its->iters_[m]))) != OB_SUCCESS)
{
TBSYS_LOG(WARN,"add iterator to merger failed,ret=%d",ret);
}
else
{
++m;
//success
}
}
else
{
break; //got enough data
}
mem_node = mem_node->next_;
}
if ((m > 0) && (OB_SUCCESS == ret))
{
if ((ret = fill_compact_data(merger,compact_scanner)) != OB_SUCCESS)
{
TBSYS_LOG(WARN,"fill compact data failed,ret=%d",ret);
}
}
else if ((OB_SUCCESS == ret) && add_row_not_exist)
{
//not exist
ObCellInfo cell;
cell.table_id_ = table_id;
cell.column_id_ = OB_INVALID_ID;
cell.value_.set_ext(ObActionFlag::OP_ROW_DOES_NOT_EXIST);
cell.row_key_ = rowkey;
if ((ret = compact_scanner.add_cell(cell,false,true)) != OB_SUCCESS)
{
TBSYS_LOG(WARN,"add not exist cell failed,ret=%d",ret);
}
}
return ret;
}
