comphead opened a new issue, #20919:
URL: https://github.com/apache/datafusion/issues/20919
### Describe the bug
Built DataFusion with batch.size = 1 in the `config.rs`
```
pub batch_size: usize, default = 1
```
And realized some failed unit and slt tests. Kind of testsare expected to
fail:
- explain plans changed
- result differently sorted across rows or across arrays
But there also issues when the test crashes on internal assertions,
correctness issues, panics
Some examples
```
thread 'tokio-runtime-worker' (3580060) panicked at
/Users/ovoievodin/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/arrow-select-58.0.0/src/coalesce/primitive.rs:61:9:
assertion `left == right` failed
left: 4
right: 2
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Completed 5 test files in 1 second
failure in group_by.slt for sql
SELECT FIRST_VALUE(x)
FROM FOO;
caused by
External error: task 17 panicked with message "assertion `left == right`
failed\n left: 4\n right: 2"
Error: Execution("1 failures")
error: test failed, to rerun pass `-p datafusion-sqllogictest --test
sqllogictests
```
### To Reproduce
just run `cargo test`
### Expected behavior
At least shouldn't crash, I'm not sure how fuzz test it as the explain plans
are connected to the `batch_size` = 8192 but would be nice to check correctness
issues or crashes with different batch sizes
### Additional context
_No response_
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