Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/15136#discussion_r79298630
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/StatisticsSuite.scala ---
@@ -290,6 +290,27 @@ class StatisticsSuite extends QueryTest with
TestHiveSingleton with SQLTestUtils
}
}
+ test("alter table set location after analyze table") {
+ val textTable = "textTable"
+ withTable(textTable) {
+ sql(s"CREATE TABLE $textTable (key STRING, value STRING) STORED AS
TEXTFILE")
+ sql(s"INSERT INTO TABLE $textTable SELECT * FROM src")
+ sql(s"ANALYZE TABLE $textTable COMPUTE STATISTICS")
+ checkStats(
+ textTable, isDataSourceTable = false, hasSizeInBytes = true,
expectedRowCounts = Some(500))
+
+ withTempDir { tmpDir =>
+ val path = tmpDir.getCanonicalPath
+ sql(s"ALTER TABLE $textTable SET LOCATION '$path'")
+ checkStats(
+ textTable,
+ isDataSourceTable = false,
+ hasSizeInBytes = false,
--- End diff --
After the PR: https://github.com/apache/spark/pull/14971, we can reuse the
Hive-generated statistics. Thus, this value will be `true`.
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