| Bug #68814 | MySQL optimizer consider few rows to examine but it is not really obvious why | ||
|---|---|---|---|
| Submitted: | 29 Mar 2013 15:33 | Modified: | 23 Apr 2015 6:14 |
| Reporter: | Shahriyar Rzayev | Email Updates: | |
| Status: | Verified | Impact on me: | |
| Category: | MySQL Server: InnoDB storage engine | Severity: | S3 (Non-critical) |
| Version: | 5.6.10 | OS: | Any (Centos 6.3) |
| Assigned to: | CPU Architecture: | Any | |
| Tags: | count(*) with where, Explain plan | ||
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
