yujun777 opened a new pull request, #49851:
URL: https://github.com/apache/doris/pull/49851
### What problem does this PR solve?
ExtractSingleTableExpressionFromDisjunction will extract each table's
expression from JOIN, but it forget to run recurively, this PR will fix this.
For example: for sql `t1 join t2 where t1.a = 1 or (t1.b = 2 and (t1.c =
3 or t1.d = 4 and t2.x = 1))`,
when try to extract table t1's expression, it cannot extract, because the
rule don't run recurively, and when it met the deep child `t1.c = 3 or t1.d =
4 and t2.x = 1`, it can not extract t1.
so this PR will make extract child recurively, after this PR, it will
extract table t1's expression: t1.a = 1 or (t1.b = 2 and (t1.c = 3 or t1.d =
4), then later it will push down t1's expression through the join.
### Check List (For Author)
- Test <!-- At least one of them must be included. -->
- [ ] Regression test
- [ ] Unit Test
- [ ] Manual test (add detailed scripts or steps below)
- [ ] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
- [ ] Previous test can cover this change.
- [ ] No code files have been changed.
- [ ] Other reason <!-- Add your reason? -->
- Behavior changed:
- [ ] No.
- [ ] Yes. <!-- Explain the behavior change -->
- Does this need documentation?
- [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
https://github.com/apache/doris-website/pull/1214 -->
### Check List (For Reviewer who merge this PR)
- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR should
merge into -->
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