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[SPARK-4386] Improve performance when writing Parquet files #3843

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[SPARK-4386] Improve performance when writing Parquet files #3843

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4 changes: 2 additions & 2 deletions sql/core/src/main/scala/org/apache/spark/sql/parquet/ParquetTableSupport.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -130,15 +130,15 @@ private[parquet] object RowReadSupport {
private[parquet] class RowWriteSupport extends WriteSupport[Row] with Logging {

private[parquet] var writer: RecordConsumer = null
private[parquet] var attributes: Seq[Attribute] = null
private[parquet] var attributes: Array[Attribute] = null

override def init(configuration: Configuration): WriteSupport.WriteContext = {
val origAttributesStr: String = configuration.get(RowWriteSupport.SPARK_ROW_SCHEMA)
val metadata = new JHashMap[String, String]()
metadata.put(RowReadSupport.SPARK_METADATA_KEY, origAttributesStr)

if (attributes == null) {
attributes = ParquetTypesConverter.convertFromString(origAttributesStr)
attributes = ParquetTypesConverter.convertFromString(origAttributesStr).toArray
}

log.debug(s"write support initialized for requested schema $attributes")
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