Internal error: Invalid HashJoinExec partition count mismatch 1!=2 when constructing merge plan with 1 CPU #9928
Description
Describe the bug
In delta-rs, when constructing a merge plan via Datafusion, we've seen the following error when running in an environment with only 1 CPU. After increasing to 2 CPUs, the issue is resolved. (delta-io/delta-rs#2188)
Internal error: Invalid HashJoinExec partition count mismatch 1!=2
Why is this the case?
To Reproduce
No response
Expected behavior
No response
Additional context
No response