kangkaisen commented on issue #838: CumulativeCompaction with HLL cause BE core dump URL: https://github.com/apache/incubator-doris/issues/838#issuecomment-478939090 **When there is no data insert, the query result for the same query is different**: ``` mysql> select HLL_UNION_AGG(uuid), HLL_UNION_AGG(user_id) from app_log_mv_uv; +-----------------------+--------------------------+ | hll_union_agg(`uuid`) | hll_union_agg(`user_id`) | +-----------------------+--------------------------+ | 1890549 | 10533037 | +-----------------------+--------------------------+ 1 row in set (0.75 sec) mysql> select HLL_UNION_AGG(uuid), HLL_UNION_AGG(user_id) from app_log_mv_uv; +-----------------------+--------------------------+ | hll_union_agg(`uuid`) | hll_union_agg(`user_id`) | +-----------------------+--------------------------+ | 1890549 | 1771613 | +-----------------------+--------------------------+ 1 row in set (0.77 sec) mysql> select HLL_UNION_AGG(uuid), HLL_UNION_AGG(user_id) from app_log_mv_uv; +-----------------------+--------------------------+ | hll_union_agg(`uuid`) | hll_union_agg(`user_id`) | +-----------------------+--------------------------+ | 1890549 | 10533037 | +-----------------------+--------------------------+ 1 row in set (0.75 sec) ```
---------------------------------------------------------------- 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: [email protected] With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
