| Bug #81341 | Optimizer chooses to use non PRIMARY index, even though cost is higher | ||
|---|---|---|---|
| Submitted: | 6 May 2016 15:24 | Modified: | 28 Sep 2016 18:03 |
| Reporter: | Jenni Snyder | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S2 (Serious) |
| Version: | 5.6 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | INDEX, Optimizer, SELECT, use_index_extensions | ||
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
