gatorsmile commented on a change in pull request #24938: [SPARK-27946][SQL]
Hive DDL to Spark DDL conversion USING "show create table"
URL: https://github.com/apache/spark/pull/24938#discussion_r376756401
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala
##########
@@ -1017,16 +1067,154 @@ case class ShowCreateTableCommand(table:
TableIdentifier) extends RunnableComman
// TODO: [SPARK-28692] unify this after we unify the
// CREATE TABLE syntax for hive serde and data source table.
- val stmt = if (DDLUtils.isDatasourceTable(tableMetadata)) {
- showCreateDataSourceTable(tableMetadata)
+ val metadata = if (DDLUtils.isDatasourceTable(tableMetadata)) {
+ tableMetadata
} else {
- showCreateHiveTable(tableMetadata)
+ // For a Hive serde table, we try to convert it to Spark DDL.
+ if (tableMetadata.unsupportedFeatures.nonEmpty) {
+ throw new AnalysisException(
+ "Failed to execute SHOW CREATE TABLE against table " +
+ s"${tableMetadata.identifier}, which is created by Hive and uses
the " +
+ "following unsupported feature(s)\n" +
Review comment:
Can we improve the exception message? Let end users know what are the new
syntax for CREATE HIVE SERDE table.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
