| Bug #54641 | semijoin loosescan gives duplicate rows | ||
|---|---|---|---|
| Submitted: | 20 Jun 2010 7:48 | Modified: | 11 Dec 2010 17:49 |
| Reporter: | Guilhem Bichot | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Server: Optimizer | Severity: | S3 (Non-critical) |
| Version: | next-mr-opt-backporting | OS: | Any |
| Assigned to: | Jørgen Løland | CPU Architecture: | Any |
| Tags: | join_cache_level, LooseScan, optimizer_switch, 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
