fix serialize error (apache#18)

HappenLee · Jul 13, 2021 · 581bc03 · 581bc03
1 parent c8ab31b
commit 581bc03
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/be/src/vec/exec/vaggregation_node.cpp b/be/src/vec/exec/vaggregation_node.cpp
@@ -266,8 +266,10 @@ Status AggregationNode::_serialize_without_key(RuntimeState* state, Block* block
  for (int i = 0; i < _aggregate_evaluators.size(); ++i) {
  _aggregate_evaluators[i]->function()->serialize(
  _agg_data.without_key + _offsets_of_aggregate_states[i], buf);
- value_columns[i]->insertData(buf.str().c_str(), buf.str().length());
- buf.str().clear();
+ auto str_buffer = buf.str();
+ value_columns[i]->insertData(str_buffer.c_str(), str_buffer.length());
+ buf.str("");
+ buf.clear();
  }
  {
  ColumnsWithTypeAndName data_with_schema;