kangkaisen opened a new issue #2654: BITMAP_UNION_COUNT query couldn't hit rollup index URL: https://github.com/apache/incubator-doris/issues/2654 **Describe the bug** ``` | 0:OlapScanNode | | TABLE: pv_bitmap | | PREAGGREGATION: OFF. Reason: Invalid Aggregate Operator: bitmap_union_count ``` **To Reproduce** Steps to reproduce the behavior: 1 ``` CREATE TABLE `pv_bitmap` ( `dt` int, `page` varchar(10), `user_id` bitmap bitmap_union ) ENGINE=OLAP AGGREGATE KEY(`dt`, page) DISTRIBUTED BY HASH(`dt`) BUCKETS 2; ``` 2 ``` ALTER TABLE pv_bitmap ADD ROLLUP pv (page, user_id); ``` 3 ``` explain select bitmap_union_count(user_id) as retention from pv_bitmap; ```
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