Youngwb opened a new issue #3868: URL: https://github.com/apache/incubator-doris/issues/3868
**Describe the bug** BE will core when user query table which contains HLL data and it's write by old version(maybe 0.10), This bug happens occasionally, not always **Screenshots**  **Additional context** According to the core file, the reason is that when HyperLogLog initialized with Slice, the Slice's data pointed to an invalid address, causing be to crash. And the address 0x2c87f2031 is used to Identifies whether the cell is NULL ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org