andygrove commented on PR #2886:
URL:
https://github.com/apache/datafusion-comet/pull/2886#issuecomment-3647860198
Genuine failure with mixed Spark/Comet hash agg:
```
[info] Cause: org.apache.comet.CometNativeException: assertion `left ==
right` failed: Cannot merge SparkBloomFilters with different lengths.
[info] left: 1048588
[info] right: 1048576
[info] at comet::errors::init::{{closure}}(__internal__:0)
[info] at std::panicking::panic_with_hook(__internal__:0)
[info] at std::panicking::panic_handler::{{closure}}(__internal__:0)
[info] at
std::sys::backtrace::__rust_end_short_backtrace(__internal__:0)
[info] at __rustc::rust_begin_unwind(__internal__:0)
[info] at core::panicking::panic_fmt(__internal__:0)
[info] at core::panicking::assert_failed_inner(__internal__:0)
[info] at core::panicking::assert_failed(__internal__:0)
[info] at
datafusion_comet_spark_expr::bloom_filter::bloom_filter_agg::<impl
datafusion_expr_common::accumulator::Accumulator for
datafusion_comet_spark_expr::bloom_filter::spark_bloom_filter::SparkBloomFilter>::merge_batch(__internal__:0)
[info] at <futures_util::stream::stream::fuse::Fuse<S> as
futures_core::stream::Stream>::poll_next(__internal__:0)
[info] at
<datafusion_physical_plan::aggregates::no_grouping::AggregateStream as
futures_core::stream::Stream>::poll_next(__internal__:0)
[info] at <datafusion_physical_plan::projection::ProjectionStream as
futures_core::stream::Stream>::poll_next(__internal__:0)
[info] at
comet::execution::jni_api::Java_org_apache_comet_Native_executePlan::{{closure}}::{{closure}}(__internal__:0)
[info] at Java_org_apache_comet_Native_executePlan(__internal__:0)
[info] at <unknown>(__internal__:0)
```
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