| Bug #80989 | Severe performance degradation from 5.6 to 5.7 with a long query on a larg table | ||
|---|---|---|---|
| Submitted: | 7 Apr 2016 8:09 | Modified: | 8 Apr 2016 1:29 |
| Reporter: | Paolo Scaglione | Email Updates: | |
| Status: | Duplicate | Impact on me: | |
| Category: | MySQL Server: Options | Severity: | S2 (Serious) |
| Version: | OS: | Any | |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | large query, partitioning, range_optimizer_max_mem_size | ||
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
[7 Apr 2016 9:59]
Paolo Scaglione
