MaxGekk commented on a change in pull request #23811: [SPARK-26902][SQL]
Support java.time.Instant as an external type of TimestampType
URL: https://github.com/apache/spark/pull/23811#discussion_r259406431
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -1659,6 +1659,12 @@ object SQLConf {
"a SparkConf entry.")
.booleanConf
.createWithDefault(true)
+
+ val TIMESTAMP_EXTERNAL_TYPE = buildConf("spark.sql.catalyst.timestampType")
Review comment:
> it may be 'legacy' but not sure it's worth the behavior change.
The SQL config `spark.sql.catalyst.timestampType` has default value
`Timestamp` which preserves current behavior. When an user wants to import
`java.time.Instant` from Spark, she/he can change the config to point out the
Java timestamp class.
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