HeartSaVioR commented on code in PR #47393:
URL: https://github.com/apache/spark/pull/47393#discussion_r1683721948


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
##########
@@ -2129,6 +2129,13 @@ object SQLConf {
     .intConf
     .createWithDefault(100)
 
+  val MIN_VERSIONS_TO_DELETE = 
buildConf("spark.sql.streaming.minVersionsToDelete")
+    .internal()
+    .doc("The minimum number of stale versions to delete when maintenance is 
invoked.")
+    .version("2.1.1")
+    .intConf
+    .createWithDefault(30)

Review Comment:
   But if we consider this as important behavioral change, we could set the 
default value to be effectively no-op and document how to config this instead.



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