Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7226#discussion_r34119333
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/sources/ddl.scala ---
@@ -304,6 +304,9 @@ private[sql] object ResolvedDataSource {
mode: SaveMode,
options: Map[String, String],
data: DataFrame): ResolvedDataSource = {
+ if (data.schema.map(_.dataType).exists(_.isInstanceOf[IntervalType])) {
+ sys.error("Cannot save interval data type into external storage.")
--- End diff --
when is this called? if it is called during analysis, it'd make more sense
to throw AnalysisException, since that has better error reporting in Python.
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