rdblue commented on a change in pull request #26740: [SPARK-30053][SQL] Add the
ability for v2 datasource so specify a vacuum action on the table
URL: https://github.com/apache/spark/pull/26740#discussion_r355228146
##########
File path:
sql/catalyst/src/main/java/org/apache/spark/sql/connector/catalog/SupportsVacuum.java
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@@ -0,0 +1,18 @@
+package org.apache.spark.sql.connector.catalog;
+
+import org.apache.spark.annotation.Experimental;
+/**
+ * A mix-in interface for {@link Table} vacuum support. Data sources can
implement this
+ * interface to provide the ability to perform table maintenance on request of
the user.
+ */
+@Experimental
+public interface SupportsVacuum {
+
+ /**
+ * Performs maintenance on the table. This often includes removing unneeded
data and
+ * deleting stale records.
+ *
+ * @throws IllegalArgumentException If the vacuum is rejected due to
required effort.
Review comment:
Why allow a source to reject a vacuum operation?
If vacuuming is supported, then the source should always do the operation
when requested. I don't see a reason why the source would need to reject it.
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