Github user rxin commented on a diff in the pull request: https://github.com/apache/spark/pull/15764#discussion_r86493730 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/command/views.scala --- @@ -131,6 +131,26 @@ case class CreateViewCommand( s"specified by CREATE VIEW (num: `${userSpecifiedColumns.length}`).") } + // When creating a permanent view, not allowed to reference temporary objects. + if (!isTemporary) { + child.collect { + // Disallow creating permanent views based on temporary views. + case s: UnresolvedRelation + if sparkSession.sessionState.catalog.isTemporaryTable(s.tableIdentifier) => + throw new AnalysisException(s"Not allowed to create a permanent view $name by " + + s"referencing a temp view ${s.tableIdentifier}. " + + originalText.map(sql => s"""SQL: "$sql".""").getOrElse("")) + case other if !other.resolved => other.expressions.flatMap(_.collect { + // Disallow creating permanent views based on temporary UDFs. + case e: UnresolvedFunction + if sparkSession.sessionState.catalog.isTemporaryFunction(e.name) => + throw new AnalysisException(s"Not allowed to create a permanent view $name by " + + s"referencing a temp function `${e.name}`. " + + originalText.map(sql => s"""SQL: "$sql".""").getOrElse("")) --- End diff -- same here do we really need to show the entire sql? it's basically what the user just typed in
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