klaus-xiong commented on PR #35756:
URL: https://github.com/apache/spark/pull/35756#issuecomment-1195105080
>
` test("Timestamp type should be read and writen correctly") {
val zoneIdAndNames =
Seq((UTC, "UTC"), (PST, "PST"), (getZoneId("Asia/Shanghai"), "SH"))
zoneIdAndNames.foreach { case (zoneId, zoneName) =>
withDefaultTimeZone(zoneId) {
// In avro the date "0001-01-01 00:00:00" will be read as
"0002-01-01 00:00:00"
Seq("sequencefile", "textfile", "rcfile", "orc", "avro").foreach {
format =>
val tableName = "t_timestamp_" + format + "_" + zoneName
withTable(tableName) {
sql(s"CREATE TABLE $tableName(a TIMESTAMP) STORED AS $format")
val timestamps = Seq(
"1000-01-01 00:00:00.123",
"1582-10-15 08:00:00.456",
"1883-11-18 19:59:59.999",
"1883-11-18 20:00:00.001",
"1900-11-18 20:00:00.789",
"1970-01-01 00:00:00")
val tsValues = timestamps.map(ts =>
s"(TIMESTAMP('$ts'))").mkString(",")
sql(s"INSERT INTO $tableName VALUES $tsValues")
val df = sql(
s"""
|SELECT
|CAST(a AS STRING) AS a
|FROM $tableName
|ORDER BY a
""".stripMargin)
checkAnswer(df, timestamps.toDF("a"))
}
}
}
}
}`
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