| Bug #79547 | bad performance query on mysql 5.6 | ||
|---|---|---|---|
| Submitted: | 7 Dec 2015 13:59 | Modified: | 2 Jun 2019 13:54 |
| Reporter: | walter verdelocco | Email Updates: | |
| Status: | No Feedback | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S3 (Non-critical) |
| Version: | 5.6 | OS: | Debian |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | Optimizer, performance, query | ||
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
[11 Dec 2015 12:12]
Øystein Grøvlen
[11 Dec 2015 12:25]
Øystein Grøvlen
Optimizer trace when BNL is off (copied from MySQL Performance Forum))
Attachment: no-bnl.trace (application/octet-stream, text), 30.18 KiB.
