Bug #106006 | conditions are not pushed down into subqueries with union all: performance issue | ||
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Submitted: | 30 Dec 2021 3:10 | Modified: | 11 Jan 2022 14:44 |
Reporter: | Brian Yue (OCA) | Email Updates: | |
Status: | Closed | Impact on me: | |
Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
Version: | 8.0.25, 8.0.27, 5.7.36 | OS: | Any (rhel-7.4) |
Assigned to: | CPU Architecture: | Any (x86-64) | |
Tags: | condition push down, performance, subqueries, tmp table, UNION ALL |
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