| Bug #36802 | MySQL only use covered index when selecting from a view (or subquery) with union | ||
|---|---|---|---|
| Submitted: | 19 May 2008 15:42 | Modified: | 5 Jan 2022 15:50 |
| Reporter: | Alexander Rubin | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S3 (Non-critical) |
| Version: | 5.0, 5.1, 6.0 BK | OS: | Any |
| Assigned to: | Assigned Account | CPU Architecture: | Any |
| Tags: | INDEX, Optimizer, UNION, VIEW | ||
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
