Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/13079#discussion_r63669445
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala ---
@@ -626,40 +626,149 @@ case class ShowCreateTableCommand(table:
TableIdentifier) extends RunnableComman
val stmt = if (DDLUtils.isDatasourceTable(tableMetadata)) {
showCreateDataSourceTable(tableMetadata)
} else {
- throw new UnsupportedOperationException(
- "SHOW CREATE TABLE only supports Spark SQL data source tables.")
+ showCreateHiveTable(tableMetadata)
}
Seq(Row(stmt))
}
+ private def showCreateHiveTable(metadata: CatalogTable): String = {
+ def reportUnsupportedError(): Unit = {
+ throw new UnsupportedOperationException(
+ s"Failed to execute SHOW CREATE TABLE against table
${metadata.identifier.quotedString}, " +
+ "because it contains table structure(s) (e.g. skewed columns)
that Spark SQL doesn't " +
+ "support yet."
--- End diff --
Do you mean we should mention the exact keywords, or just saying that the
table is created by Hive?
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