| Bug #69841 | SELECT COUNT(DISTINCT a,b) incorrectly counts rows containing NULL | ||
|---|---|---|---|
| Submitted: | 25 Jul 2013 23:41 | Modified: | 1 Oct 2013 18:37 |
| Reporter: | Arthur O'Dwyer | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S3 (Non-critical) |
| Version: | 5.5/5.6 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | regression | ||
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