Bug #80505 | mysql server 5.7.11 view performance issue | ||
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Submitted: | 25 Feb 2016 9:43 | Modified: | 25 Feb 2016 14:53 |
Reporter: | mohamed atef | Email Updates: | |
Status: | Duplicate | Impact on me: | |
Category: | MySQL Server: Optimizer | Severity: | S5 (Performance) |
Version: | 5.7.11 | OS: | Windows |
Assigned to: | CPU Architecture: | Any | |
Tags: | view performance issue |
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
[25 Feb 2016 9:44]
mohamed atef
[25 Feb 2016 9:45]
mohamed atef
extended explain for query in server 5.7.10 and optimizer dervied_merge is set to off
Attachment: EXTENDED EXPLAIN derived_merge off 5.7.10.html (text/html), 4.63 KiB.
[25 Feb 2016 9:45]
mohamed atef
extended explain for query in server 5.7.10 and optimizer dervied_merge is set to on
Attachment: EXTENDED EXPLAIN derived_merge on 5.7.10.html (text/html), 4.12 KiB.