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Posted to issues@spark.apache.org by "lynn (Jira)" <ji...@apache.org> on 2021/04/28 02:44:00 UTC
[jira] [Updated] (SPARK-35252) PartitionReaderFactory's
Implemention Class of DataSourceV2 sqlConf parameter is null
[ https://issues.apache.org/jira/browse/SPARK-35252?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
lynn updated SPARK-35252:
-------------------------
Summary: PartitionReaderFactory's Implemention Class of DataSourceV2 sqlConf parameter is null (was: PartitionReaderFactory's Implemention Class of DataSourceV2 sqlConfi parameter is null)
> PartitionReaderFactory's Implemention Class of DataSourceV2 sqlConf parameter is null
> -------------------------------------------------------------------------------------
>
> Key: SPARK-35252
> URL: https://issues.apache.org/jira/browse/SPARK-35252
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 3.0.2
> Reporter: lynn
> Priority: Major
>
> The codes of
> {code:java}
> // Implemention Class
> package com.lynn.spark.sql.v2
> import org.apache.spark.internal.Logging
> import org.apache.spark.sql.catalyst.InternalRow
> import org.apache.spark.sql.connector.read.{InputPartition, PartitionReader, PartitionReaderFactory}
> import org.apache.spark.sql.internal.SQLConf
> import org.apache.spark.sql.types.StructType
> import org.apache.spark.sql.vectorized.ColumnarBatch
> case class MyPartitionReaderFactory(sqlConf: SQLConf,
> dataSchema: StructType,
> readSchema: StructType)
> extends PartitionReaderFactory with Logging {
> def batchSize = sqlConf.getConf("spark.sql.my.vectorized.batch.size")
> override def createReader(partition: InputPartition): PartitionReader[InternalRow] = {
> MyRowReader(batchSize, dataSchema, readSchema)
> }
> override def createColumnarReader(partition: InputPartition): PartitionReader[ColumnarBatch] = {
> if(!supportColumnarReads(partition))
> throw new UnsupportedOperationException("Cannot create columnar reader.")
> //TODO: delete this line
> println(sqlConf.getAllConfs)
> MyColumnReader(batchSize, dataSchema, readSchema)
> }
> override def supportColumnarReads(partition: InputPartition) = true
> }
> {code}
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