Gabriel39 opened a new pull request, #47729:
URL: https://github.com/apache/doris/pull/47729
In Coordinator, a shuffle map consists of `recvrId` in each instance. For
example, if 3 BEs exist in a cluster, for a shuffled hash join, we get 3 maps
for a fragment sent to each BE:
BE0: {0:0, 1:1}
BE1: {2:0, 3:1}
BE2: {4:0, 5:1}
In this example, parallelism is 2. Keys in shuffle map indicate the global
shuffle id and the values indicate the instance id in current BE. In
Coordinator, the `recvrId` is the global shuffle id of each instance so we may
get a wrong result if it is wrong.
This bug is caused by `recvrId` set by a BHJ fragment. If a fragment
contains both BHJ and SHJ, `recvrId` should be set by SHJ and BHJ should be
ignored.
### What problem does this PR solve?
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
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- [ ] Previous test can cover this change.
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- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
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