[GitHub] [incubator-doris] 924060929 opened a new issue #5424: [BUG] hll could terminate be will aggregate 160 item

[GitBox]

924060929 opened a new issue #5424:
URL: https://github.com/apache/incubator-doris/issues/5424


   **Describe the bug**
   
   hyper log log aggreate 160 items will terminate `backend`
   
   **To Reproduce**
   Steps to reproduce the behavior:
   1. create a test table
   ```sql
   CREATE TABLE `numbers` (
     `id` int(11) NULL COMMENT ""
   ) ENGINE=OLAP
   DISTRIBUTED BY HASH(`id`)
   PROPERTIES (
     "replication_num" = "1"
   );
   ```
   2. insert into table numbers from 0 until 1000
   3. execute query
   ```sql
   select hll_union_agg(cast(hll_hash(id) as hll)) from numbers where id < 160;
   ```
   4. See error: `F0225 19:45:01.553544 227868 hll.cpp:167] Check failed: 
_hash_set.size() < HLL_EXPLICLIT_INT64_NUM Number of explicit elements(160) 
should be less or equal than 160`
   
   **Expected behavior**
   `backend` process exit
   
   **Screenshots**
   According to the error message, we should modify to `DCHECK(_hash_set.size() 
<= HLL_EXPLICLIT_INT64_NUM)`
   
   
   
![image](https://user-images.githubusercontent.com/8806055/109152956-2772a280-77a7-11eb-9cfb-7e3285f345b8.png)
   
   
   **Desktop (please complete the following information):**
   None
   
   **Smartphone (please complete the following information):**
   None
   
   **Additional context**
   None
   


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