| Bug #79340 | UNION ALL ... LIMIT 1 evaluates too many rows in 5.5/6 and twice more in 5.7 | ||
|---|---|---|---|
| Submitted: | 19 Nov 2015 14:40 | Modified: | 16 Aug 2019 19:19 |
| Reporter: | Guilhem Bichot | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S2 (Serious) |
| Version: | 5.7.9 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
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
