Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14962#discussion_r77753115
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/ddl.scala ---
@@ -189,31 +189,39 @@ case class DropTableCommand(
override def run(sparkSession: SparkSession): Seq[Row] = {
val catalog = sparkSession.sessionState.catalog
- if (!catalog.tableExists(tableName)) {
- if (!ifExists) {
- val objectName = if (isView) "View" else "Table"
- throw new AnalysisException(s"$objectName to drop '$tableName'
does not exist")
- }
- } else {
- // If the command DROP VIEW is to drop a table or DROP TABLE is to
drop a view
- // issue an exception.
- catalog.getTableMetadataOption(tableName).map(_.tableType match {
- case CatalogTableType.VIEW if !isView =>
- throw new AnalysisException(
- "Cannot drop a view with DROP TABLE. Please use DROP VIEW
instead")
- case o if o != CatalogTableType.VIEW && isView =>
- throw new AnalysisException(
- s"Cannot drop a table with DROP VIEW. Please use DROP TABLE
instead")
- case _ =>
- })
- try {
- sparkSession.sharedState.cacheManager.uncacheQuery(
- sparkSession.table(tableName.quotedString))
- } catch {
- case NonFatal(e) => log.warn(e.toString, e)
+
+ // If the table name contains database part, we should drop a
metastore table directly,
+ // otherwise, try to drop a temp view first, if that not exist, drop
metastore table.
+ val dropMetastoreTable =
+ tableName.database.isDefined ||
!catalog.dropTempView(tableName.table)
--- End diff --
`Drop Table` is unable to drop a temp view, right?
```SQL
spark.range(10).createTempView("tempView")
sql("DESC tempView").show()
sql("DROP TABLE tempView")
sql("DESC tempView").show()
```
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
