Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/2501#discussion_r18378483
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveMetastoreCatalog.scala ---
@@ -305,7 +300,7 @@ private[hive] case class MetastoreRelation
HiveMetastoreTypes.toDataType(f.getType),
// Since data can be dumped in randomly with no validation,
everything is nullable.
nullable = true
- )(qualifiers = tableName +: alias.toSeq)
+ )(qualifiers = alias.map(a => Seq(a)).getOrElse(Seq(tableName)))
--- End diff --
Can be simplified to `Seq(alias.getOrElse(tableName))`.
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