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[SPARK-22280][SQL][TEST] Improve StatisticsSuite to test convertMetastore properly #19500

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[SPARK-22280][SQL][TEST] Improve StatisticsSuite to test convertMetastore properly #19500

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[SPARK-22280][SQL][TEST] Improve StatisticsSuite to test `convertMeta…
dongjoon-hyun Oct 15, 2017
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dongjoon-hyun Oct 16, 2017
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dongjoon-hyun Oct 16, 2017
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34 changes: 14 additions & 20 deletions sql/hive/src/test/scala/org/apache/spark/sql/hive/StatisticsSuite.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -937,26 +937,20 @@ class StatisticsSuite extends StatisticsCollectionTestBase with TestHiveSingleto
}

test("test statistics of LogicalRelation converted from Hive serde tables") {
val parquetTable = "parquetTable"
val orcTable = "orcTable"
withTable(parquetTable, orcTable) {
sql(s"CREATE TABLE $parquetTable (key STRING, value STRING) STORED AS PARQUET")
sql(s"CREATE TABLE $orcTable (key STRING, value STRING) STORED AS ORC")
sql(s"INSERT INTO TABLE $parquetTable SELECT * FROM src")
sql(s"INSERT INTO TABLE $orcTable SELECT * FROM src")

// the default value for `spark.sql.hive.convertMetastoreParquet` is true, here we just set it
// for robustness
withSQLConf(HiveUtils.CONVERT_METASTORE_PARQUET.key -> "true") {
checkTableStats(parquetTable, hasSizeInBytes = false, expectedRowCounts = None)
sql(s"ANALYZE TABLE $parquetTable COMPUTE STATISTICS")
checkTableStats(parquetTable, hasSizeInBytes = true, expectedRowCounts = Some(500))
}
withSQLConf(HiveUtils.CONVERT_METASTORE_ORC.key -> "true") {
// We still can get tableSize from Hive before Analyze
checkTableStats(orcTable, hasSizeInBytes = true, expectedRowCounts = None)
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@wzhfy wzhfy Oct 16, 2017

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Could you explain why orc table has size before analyze command while parquet table does not?

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@dongjoon-hyun dongjoon-hyun Oct 16, 2017 •
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This is old test case by SPARK-17410.
The original test case before SPARK-17410 wasn't and my new test case didn't.
It's due to convertMetastoreXXX. Hive INSERT will generate stats.

sql(s"ANALYZE TABLE $orcTable COMPUTE STATISTICS")
checkTableStats(orcTable, hasSizeInBytes = true, expectedRowCounts = Some(500))
Seq("orc", "parquet").foreach { format =>
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@wzhfy wzhfy Oct 16, 2017

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Maybe "orcTbl" and "parquetTbl" are better?

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@dongjoon-hyun dongjoon-hyun Oct 16, 2017 •
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It is used in STORED AS $format, too. This is a minimal. :)

Seq(true, false).foreach { isConverted =>
withSQLConf(
HiveUtils.CONVERT_METASTORE_ORC.key -> s"$isConverted",
HiveUtils.CONVERT_METASTORE_PARQUET.key -> s"$isConverted") {
withTable(format) {
sql(s"CREATE TABLE $format (key STRING, value STRING) STORED AS $format")
sql(s"INSERT INTO TABLE $format SELECT * FROM src")

checkTableStats(format, hasSizeInBytes = !isConverted, expectedRowCounts = None)
sql(s"ANALYZE TABLE $format COMPUTE STATISTICS")
checkTableStats(format, hasSizeInBytes = true, expectedRowCounts = Some(500))
}
}
}
}
}
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