Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/18334#discussion_r124445210 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/StatisticsCollectionSuite.scala --- @@ -168,6 +157,92 @@ class StatisticsCollectionSuite extends StatisticsCollectionTestBase with Shared assert(stats.simpleString == expectedString) } } + + test("change stats after truncate command") { + val table = "change_stats_truncate_table" + Seq(false, true).foreach { autoUpdate => + withSQLConf(SQLConf.AUTO_UPDATE_SIZE.key -> autoUpdate.toString) { --- End diff -- `TruncateTableCommand` doesn't read the `AUTO_UPDATE_SIZE` config at all, we don't need to test with this config.
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