Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/14500#discussion_r73619320
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/tables.scala ---
@@ -389,6 +389,50 @@ case class TruncateTableCommand(
}
/**
+ * A command to repair a table by discovery all the partitions in the
directory.
+ *
+ * The syntax of this command is:
+ * {{{
+ * MSCK REPAIR TABLE table_name;
+ * }}}
+ *
+ * This command is the same as AlterTableRecoverPartitions
+ */
+case class RepairTableCommand(tableName: TableIdentifier) extends
RunnableCommand {
+ override def run(spark: SparkSession): Seq[Row] = {
+ val catalog = spark.sessionState.catalog
+ val table = catalog.getTableMetadata(tableName)
+ if (!catalog.tableExists(tableName)) {
+ throw new AnalysisException(s"Table $tableName in MSCK REPAIR TABLE
does not exist.")
+ }
+ if (catalog.isTemporaryTable(tableName)) {
+ throw new AnalysisException(
+ s"Operation not allowed: MSCK REPAIR TABLE on temporary tables:
$tableName")
+ }
+ if (DDLUtils.isDatasourceTable(table)) {
+ throw new AnalysisException(
+ s"Operation not allowed: MSCK REPAIR TABLE on datasource tables:
$tableName")
+ }
+ if (table.tableType != CatalogTableType.EXTERNAL) {
+ throw new AnalysisException(
+ s"Operation not allowed: MSCK REPAIR TABLE only works on external
tables: $tableName")
+ }
+ if (DDLUtils.isTablePartitioned(table)) {
--- End diff --
This checking conflicts with the error message reported below. Now, if the
table is partitioned, we will report the message: `MSCK REPAIR TABLE only works
on partitioned tables`
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