nextdreamblue commented on PR #14722:
URL: https://github.com/apache/doris/pull/14722#issuecomment-1352895192
> Can't we just compare 2 rows in `_agg_key_next_block` to check if they are
same? Just like what the rowwise implementation did.
like in
`_agg_key_next_row` ,
```
if (!equal_row(_key_cids, *row_cursor, *_next_key)) {
break;
}
```
总感觉这样整个查询效率会低好多，多一次重复比较。我试试用roaringbitmap代替vector吧
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