cloud-fan commented on a change in pull request #25040: [SPARK-28238][SQL]
Implement DESCRIBE TABLE for Data Source V2 Tables.
URL: https://github.com/apache/spark/pull/25040#discussion_r302898286
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala
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@@ -499,6 +501,14 @@ object OverwritePartitionsDynamic {
}
}
+case class DescribeTable(
+ catalog: TableCatalog,
+ ident: Identifier,
+ isExtended: Boolean) extends Command {
+ override lazy val output = DescribeTableSchemas.DESCRIBE_TABLE_ATTRIBUTES
Review comment:
we don't need lazy val here, as it's not a heavy computing
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