[cherry-pick](branch-21) fix append_data_by_selector_impl reserve too mush useless memory (#39581) (#39635)

## Proposed changes

cherry-pick from master #39581

be/src/vec/columns/column_impl.h

@@ -42,8 +42,11 @@ void IColumn::append_data_by_selector_impl(MutablePtr& res, const Selector& sele
                                "Size of selector: {} is larger than size of column: {}",
                                selector.size(), num_rows);
     }
-
-    res->reserve(num_rows);
+    DCHECK_GE(end, begin);
+    // here wants insert some value from this column, and the nums is (end - begin)
+    // and many be this column num_rows is 4096, but only need insert num is (1 - 0) = 1
+    // so can't call res->reserve(num_rows), it's will be too mush waste memory
+    res->reserve(res->size() + (end - begin));
 
     for (size_t i = begin; i < end; ++i) {
         static_cast<Derived&>(*res).insert_from(*this, selector[i]);