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| author | Eugene Kosov <claprix@yandex.ru> | 2018-12-29 20:44:40 +0300 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2018-12-29 22:57:05 +0200 |
| commit | 802ce9672ff630bbef08235e0e39bf599075f985 (patch) | |
| tree | 44e645c1bf25a79c4f70f1f433442ef9a3996c1d /unittest | |
| parent | b74eb5a5feb41164f7e5cab986cf203537c2128a (diff) | |
| download | mariadb-git-802ce9672ff630bbef08235e0e39bf599075f985.tar.gz | |
MDEV-18041 Database corruption after renaming a prefix-indexed column
This is a regression after MDEV-13671.
The bug is related to key part prefix lengths wich are stored in SYS_FIELDS.
Storage format is not obvious and was handled incorrectly which led to data
dictionary corruption.
SYS_FIELDS.POS actually contains prefix length too in case if any key part
has prefix length.
innobase_rename_column_try(): fixed prefixes handling
Tests for prefixed indexes added too.
Closes #1063
Diffstat (limited to 'unittest')
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