Gabriel39 opened a new pull request, #65497:
URL: https://github.com/apache/doris/pull/65497
### What problem does this PR solve?
Issue Number: N/A
Related PR: #64456
Problem Summary: FileScannerV2 converts UTC timestamp statistics into
session-local DATETIMEV2 values before ZoneMap evaluation. Across a
daylight-saving time rollback, that conversion is not monotonic, so converted
metadata endpoints may exclude local values that occur inside the UTC interval.
Parquet row-group and page-index pruning, and ORC statistics pruning, could
therefore skip matching data. Detect backward timezone transitions within UTC
statistics ranges and conservatively disable min/max pruning for those ranges
while retaining statistics for monotonic ranges and TIMESTAMPTZ mappings.
### Release note
Fix incorrect Parquet and ORC file scan pruning for UTC timestamps across
daylight-saving time rollbacks.
### Check List (For Author)
- Test: Unit Test
- Remote ASAN BE UT: TimestampStatisticsTest.*,
ParquetStatisticsTransformTest.*, and
NewOrcReaderTest.AggregatePushdownTimestamp* (7 passed)
- Behavior changed: Yes. Non-monotonic local timestamp statistics no longer
prune rows or pages.
- Does this need documentation: No
### What problem does this PR solve?
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 -->
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