| Bug #78412 | UPDATE with subquery is NOT optimized the same way as equivalent SELECT | ||
|---|---|---|---|
| Submitted: | 11 Sep 2015 16:17 | Modified: | 11 Dec 2015 14:13 |
| Reporter: | Valeriy Kravchuk | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Documentation | Severity: | S2 (Serious) |
| Version: | 5.6.24 | OS: | Any |
| Assigned to: | Paul DuBois | CPU Architecture: | Any |
| Tags: | explain, materialization, semi-join, UPDATE | ||
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
