message: Remove using namespace
diff: #include "duckdb/common/vector_operations/vector_operations.hpp"
  #include "duckdb/common/operator/comparison_operators.hpp"
  -using namespace duckdb;
  +namespace duckdb {
  struct DistinctBinaryLambdaWrapper {
  template <class FUNC, class OP, class LEFT_TYPE, class RIGHT_TYPE, class RESULT_TYPE>
  @@ -444,3 +444,5 @@ idx_t VectorOperations::SelectNotDistinctFrom(Vector &left, Vector &right, const
  SelectionVector *true_sel, SelectionVector *false_sel) {
  return TemplatedDistinctSelectOperation<duckdb::NotDistinctFrom>(left, right, sel, count, true_sel, false_sel);
  }
  +
  +}
  