Github user ueshin commented on a diff in the pull request:
https://github.com/apache/spark/pull/16781#discussion_r112373593
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/ParquetHiveCompatibilitySuite.scala
---
@@ -141,4 +160,326 @@ class ParquetHiveCompatibilitySuite extends
ParquetCompatibilityTest with TestHi
Row(Seq(Row(1))),
"ARRAY<STRUCT<array_element: INT>>")
}
+
+ val testTimezones = Seq(
+ "UTC" -> "UTC",
+ "LA" -> "America/Los_Angeles",
+ "Berlin" -> "Europe/Berlin"
+ )
+ // Check creating parquet tables with timestamps, writing data into
them, and reading it back out
+ // under a variety of conditions:
+ // * tables with explicit tz and those without
+ // * altering table properties directly
+ // * variety of timezones, local & non-local
+ val sessionTimezones = testTimezones.map(_._2).map(Some(_)) ++ Seq(None)
+ sessionTimezones.foreach { sessionTzOpt =>
+ val sparkSession = spark.newSession()
+ sessionTzOpt.foreach { tz =>
sparkSession.conf.set(SQLConf.SESSION_LOCAL_TIMEZONE.key, tz) }
+ testCreateWriteRead(sparkSession, "no_tz", None, sessionTzOpt)
+ val localTz = TimeZone.getDefault.getID()
+ testCreateWriteRead(sparkSession, "local", Some(localTz), sessionTzOpt)
+ // check with a variety of timezones. The unit tests currently are
configured to always use
+ // America/Los_Angeles, but even if they didn't, we'd be sure to cover
a non-local timezone.
+ Seq(
+ "UTC" -> "UTC",
+ "LA" -> "America/Los_Angeles",
+ "Berlin" -> "Europe/Berlin"
+ ).foreach { case (tableName, zone) =>
+ if (zone != localTz) {
+ testCreateWriteRead(sparkSession, tableName, Some(zone),
sessionTzOpt)
+ }
+ }
+ }
+
+ private def testCreateWriteRead(
+ sparkSession: SparkSession,
+ baseTable: String,
+ explicitTz: Option[String],
+ sessionTzOpt: Option[String]): Unit = {
+ testCreateAlterTablesWithTimezone(sparkSession, baseTable, explicitTz,
sessionTzOpt)
+ testWriteTablesWithTimezone(sparkSession, baseTable, explicitTz,
sessionTzOpt)
+ testReadTablesWithTimezone(sparkSession, baseTable, explicitTz,
sessionTzOpt)
+ }
+
+ private def checkHasTz(table: String, tz: Option[String]): Unit = {
+ val tableMetadata =
spark.sessionState.catalog.getTableMetadata(TableIdentifier(table))
+
assert(tableMetadata.properties.get(ParquetFileFormat.PARQUET_TIMEZONE_TABLE_PROPERTY)
=== tz)
+ }
+
+ private def testCreateAlterTablesWithTimezone(
+ spark: SparkSession,
+ baseTable: String,
+ explicitTz: Option[String],
+ sessionTzOpt: Option[String]): Unit = {
+ test(s"SPARK-12297: Create and Alter Parquet tables and timezones;
explicitTz = $explicitTz; " +
+ s"sessionTzOpt = $sessionTzOpt") {
+ val key = ParquetFileFormat.PARQUET_TIMEZONE_TABLE_PROPERTY
+ withTable(baseTable, s"like_$baseTable", s"select_$baseTable") {
+ val localTz = TimeZone.getDefault()
+ val localTzId = localTz.getID()
--- End diff --
`localTz` and `localTzId` aren't used.
---
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