| Bug #121142 | group skip scan for deduplication collapses each group to one row before a semijoin/antijoin condition on a later index | ||
|---|---|---|---|
| Submitted: | 20 Aug 1:50 | Modified: | 20 Aug 5:21 |
| Reporter: | Blackening Zhang | Email Updates: | |
| Status: | Duplicate | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S1 (Critical) |
| Version: | 8.0.41, 8.4.11, 9.4.0, 9.7.1 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | antijoin, group skip scan, index skip scan for deduplication, Optimizer, regression, semijoin, wrong results | ||
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