| Bug #78822 | Materialized table from semijoin may change join order and lead to bad plan | ||
|---|---|---|---|
| Submitted: | 13 Oct 2015 17:15 | Modified: | 20 Oct 2016 8:41 |
| Reporter: | Valeriy Kravchuk | Email Updates: | |
| Status: | Won't fix | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S3 (Non-critical) |
| Version: | 5.6, 5.6.27 | OS: | Any |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | materialization, semijoin | ||
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
[13 Oct 2015 17:18]
Valeriy Kravchuk
