Github user OopsOutOfMemory commented on the pull request:
https://github.com/apache/spark/pull/4060#issuecomment-73202418
yeah, I use a single logical operator here.
If handle the type of the table and then delegate.
Is that ok to do like below? we need catch exceptions in strategy. If not
found I will construct a new MetastoreRelation for placeholder, it would be
nice if you can give me some advice : )
try {
val resolvedTable =
context.executePlan(UnresolvedRelation(drop.tableIdent)).analyzed
resolvedTable match {
case t: MetastoreRelation =>
ExecutedCommand(DropHiveTable(t, drop.isExists,
drop.temporary)) :: Nil
}
}
catch {
case e: InvalidTableException if drop.isExists =>
ExecutedCommand(DropHiveTable(MetastoreRelation("","",None, ),
drop.isExists, drop.temporary)) :: Nil
}
...
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