| Bug #97418 | MySQL chooses different execution plan in 5.7 | ||
|---|---|---|---|
| Submitted: | 29 Oct 2019 15:25 | Modified: | 28 Jan 2020 4:10 |
| Reporter: | Vinodh Krish | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
| Version: | 5.7, 5.7.28 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | optimizer; execution plan;, regression | ||
If the data you need to attach is more than 50MB, you should create a compressed archive of the data, split it to 50MB chunks, and upload each of them as a separate attachment.
To split a large file:
- On *nix platforms use the split command e.g.
split -b 50MB <my_large_archive> <my_split_archive_prefix> - On windows use WinZip or a similar utility to split the large file
[29 Oct 2019 15:29]
Vinodh Krish
[29 Oct 2019 15:30]
Vinodh Krish
Optimizer plans for the UPDATE and SELECT
Attachment: optimizerplan_for_select.log (application/octet-stream, text), 19.06 KiB.
[31 Oct 2019 12:13]
Umesh Shastry
5.6.46, 5.7.28 and 8.0.18 results
Attachment: 97418.results (application/octet-stream, text), 15.24 KiB.
