zenoyang opened a new issue, #9269: URL: https://github.com/apache/incubator-doris/issues/9269
### Search before asking - [X] I had searched in the [issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and found no similar issues. ### Version master b40668448 ### What's Wrong? Query get wrong result when ColumnDict concurrent predicate eval. Reproduced on our production data: ```sql be.conf enable_storage_vectorization = true; enable_low_cardinality_optimize = true; mysql> set enable_vectorized_engine = true; mysql> SELECT count(distinct v1) -> from tbl1 -> where dt='2022-04-13' -> and k1 in ('xxx1','xxx2','xxx3','xxx4','xxx5'); +-----------------------------+ | count(DISTINCT `v1`) | +-----------------------------+ | 70645634 | +-----------------------------+ mysql> set enable_vectorized_engine = false; mysql> SELECT count(distinct v1) from tbl1 where dt='2022-04-13' and k1 in ('xxx1','xxx2','xxx3','xxx4','xxx5'); +-----------------------------+ | count(DISTINCT `v1`) | +-----------------------------+ | 69672646 | +-----------------------------+ be.conf enable_low_cardinality_optimize = false mysql> set enable_vectorized_engine = true; mysql> SELECT count(distinct v1) from tbl1 where dt='2022-04-13' and k1 in ('xxx1','xxx2','xxx3','xxx4','xxx5'); +-----------------------------+ | count(DISTINCT `v1`) | +-----------------------------+ | 69672646 | +-----------------------------+ ``` profile: ``` VOLAP_SCAN_NODE (id=0):(Active: 801.963ms, % non-child: 0.78%) - NumScanners: 20 ``` ### What You Expected? return correct result. ### How to Reproduce? _No response_ ### Anything Else? reason: `SegmentIterator` has member variables: `std::vector<ColumnPredicate*> col_predicates;` where `ColumnPredicate` is shared by multiple Scanners. The internal member variables of the current Predicate will be modified in the `SegmentIterator::_evaluate_short_circuit_predicate` method, resulting in incorrect results. ### Are you willing to submit PR? - [X] Yes I am willing to submit a PR! ### Code of Conduct - [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct) -- 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. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org.apache.org 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
