csun5285 opened a new pull request, #69087:
URL: https://github.com/apache/doris/pull/69087
### What problem does this PR solve?
### 1. Segment TopN leaves an incomplete condition cache
SQL:
```sql
-- c2 is a DUPLICATE KEY table with multiple overlapping segments.
SELECT k, v FROM c2 WHERE abs(v) > 0 ORDER BY k LIMIT 1;
SELECT count(*), sum(k) FROM c2 WHERE abs(v) > 0;
SELECT k, v FROM c2 WHERE abs(v) > 1 ORDER BY k DESC LIMIT 1;
SELECT count(*), sum(k) FROM c2 WHERE abs(v) > 1;
Before this fix:
- abs(v) > 0 returns 7022 rows instead of 14043.
- abs(v) > 1 returns 4681 rows instead of 9362.
The segment reaches its local read limit and writes an incomplete
condition-cache entry. A later query reuses the entry and skips valid row
ranges.
After this fix:
- abs(v) > 0 returns 14043 rows.
- abs(v) > 1 returns 9362 rows.
A segment that reaches its local read limit no longer writes the incomplete
condition-cache entry.
### 2. COUNT_ON_INDEX rejects valid slotless predicates
SQL:
-- t8 is a DUPLICATE KEY table with an inverted index on v.
SELECT count(*) FROM t8 WHERE random() < 2;
SELECT count(*) FROM t8 WHERE v MATCH_ANY 'apple' AND random() < 2;
Before this fix:
Both queries fail with:
INVALID_ARGUMENT:
COUNT_ON_INDEX pushdown cannot be used with residual scan predicates
After this fix:
- The first query returns 3.
- The second query returns 2.
COUNT_ON_INDEX now rejects only residual predicates that reference columns.
Slotless predicates are evaluated by the scanner.
Issue Number: close #xxx
Related PR: #xxx
Problem Summary:
### Release note
None
### 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 -->
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
