Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/20024#discussion_r159800597
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala
---
@@ -608,6 +665,17 @@ case class Cast(child: Expression, dataType: DataType,
timeZoneId: Option[String
val tz = ctx.addReferenceObj("timeZone", timeZone)
(c, evPrim, evNull) => s"""$evPrim = UTF8String.fromString(
org.apache.spark.sql.catalyst.util.DateTimeUtils.timestampToString($c, $tz));"""
+ case ArrayType(et, _) =>
+ (c, evPrim, evNull) => {
+ val bufferTerm = ctx.freshName("bufferTerm")
--- End diff --
ok
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