zsxwing commented on a change in pull request #22282: [SPARK-23539][SS] Add
support for Kafka headers in Structured Streaming
URL: https://github.com/apache/spark/pull/22282#discussion_r266615328
##########
File path:
external/kafka-0-10-sql/src/main/scala/org/apache/spark/sql/kafka010/KafkaSource.scala
##########
@@ -301,14 +302,24 @@ private[kafka010] class KafkaSource(
val rdd = new KafkaSourceRDD(
sc, executorKafkaParams, offsetRanges, pollTimeoutMs, failOnDataLoss,
reuseKafkaConsumer = true).map { cr =>
+ val headers = cr.headers().toArray
InternalRow(
cr.key,
cr.value,
UTF8String.fromString(cr.topic),
cr.partition,
cr.offset,
DateTimeUtils.fromJavaTimestamp(new java.sql.Timestamp(cr.timestamp)),
- cr.timestampType.id)
+ cr.timestampType.id,
+ if (headers.isEmpty) {
Review comment:
ditto
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