jintaoguan commented on a change in pull request #3985:
URL: https://github.com/apache/hudi/pull/3985#discussion_r749574597
##########
File path:
hudi-spark-datasource/hudi-spark/src/main/scala/org/apache/hudi/IncrementalRelation.scala
##########
@@ -98,7 +97,12 @@ class IncrementalRelation(val sqlContext: SQLContext,
override def schema: StructType = usedSchema
- override def buildScan(): RDD[Row] = {
+ override def buildScan(requiredColumns: Array[String]): RDD[Row] = {
+ log.info(s"buildScan requiredColumns = ${requiredColumns.mkString(",")}")
+
sqlContext.sparkSession.sessionState.conf.setConfString("spark.sql.parquet.filterPushdown",
"true")
+
sqlContext.sparkSession.sessionState.conf.setConfString("spark.sql.parquet.recordLevelFilter.enabled",
"true")
+
sqlContext.sparkSession.sessionState.conf.setConfString("spark.sql.parquet.enableVectorizedReader",
"false")
Review comment:
It is because "spark.sql.parquet.enableVectorizedReader" and
"spark.sql.parquet.recordLevelFilter.enabled" cannot be true at the same time
according to the Parquet documentation. We have to disable verctorizedReader if
we want to use recordLevelFilter. Same config as above is also used in
`MergeOnReadIncrementalRelation`.
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