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326d75bd41
Bugfix for 53290, fast unique index creation fails on duplicate null values
Summary:
Bug in the fast index creation code incorrectly considers null
values to be duplicates during block merging. Innodb policy is that
multiple null values are allowed in a unique index. Null duplicates
were correctly ignored while sorting individual blocks and with slow
index creation.
Test Plan:
mtr, including new test, load dbs using deferred index creation
DiffCamp Revision: 110840
Reviewed By: mcallaghan
CC: mcallaghan, mysql-devel@lists
Revert Plan:
OK
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| archive | ||
| blackhole | ||
| csv | ||
| example | ||
| federated | ||
| heap | ||
| ibmdb2i | ||
| innobase | ||
| innodb_plugin | ||
| myisam | ||
| myisammrg | ||
| ndb | ||
| Makefile.am | ||
| mysql_storage_engine.cmake | ||