| Bug #120861 | SELECT DISTINCT inner join expands duplicate-insensitive fanout instead of using semijoin/existence semantics | ||
|---|---|---|---|
| Submitted: | 3 Jul 12:43 | Modified: | 4 Jul 13:48 |
| Reporter: | Zack Morgan | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 9.7.1 | OS: | Ubuntu (22.04.4 LTS) |
| Assigned to: | CPU Architecture: | x86 (x86_64, Intel(R) Xeon(R) Gold 5220) | |
| Tags: | join-order, Optimizer, performance, semijoin | ||
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