Github user clockfly commented on a diff in the pull request:
https://github.com/apache/spark/pull/12872#discussion_r61987856
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/views.scala ---
@@ -71,27 +81,69 @@ case class CreateViewCommand(
require(tableDesc.schema == Nil || tableDesc.schema.length ==
analyzedPlan.output.length)
val sessionState = sparkSession.sessionState
- if (sessionState.catalog.tableExists(tableIdentifier)) {
+ if (isTemporary) {
+ createTemporaryView(tableDesc.identifier, sparkSession, analyzedPlan)
+ } else {
+ // Adds default database for permanent table if it doesn't exist, so
that tableExists()
+ // only check permanent tables.
+ val database = tableDesc.identifier.database.getOrElse(
+ sessionState.catalog.getCurrentDatabase)
+ val tableIdentifier = tableDesc.identifier.copy(database =
Option(database))
+
+ if (sessionState.catalog.tableExists(tableIdentifier)) {
+ if (allowExisting) {
--- End diff --
Fixed by disallowing "IF NOT EXISTS" syntax to be consistent with "CREATE
TEMPORARY TABLE" behavior.
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