FARRAGO - disabled semijoins from open/lu
FARRAGO - disabled semijoins from open/lu

[git-p4: depot-paths = "//open/lu/dev/": change = 5786]

LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb,LucidDB/luciddb