dongjoon-hyun commented on a change in pull request #24307: [SPARK-25407][SQL]
Ensure we pass a compatible pruned schema to ParquetRowConverter
URL: https://github.com/apache/spark/pull/24307#discussion_r272870852
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetReadSupport.scala
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@@ -49,34 +49,65 @@ import org.apache.spark.sql.types._
* Due to this reason, we no longer rely on [[ReadContext]] to pass requested
schema from [[init()]]
* to [[prepareForRead()]], but use a private `var` for simplicity.
*/
-private[parquet] class ParquetReadSupport(val convertTz: Option[TimeZone])
+private[parquet] class ParquetReadSupport(val convertTz: Option[TimeZone],
isMR: Boolean)
extends ReadSupport[UnsafeRow] with Logging {
private var catalystRequestedSchema: StructType = _
def this() {
// We need a zero-arg constructor for SpecificParquetRecordReaderBase.
But that is only
// used in the vectorized reader, where we get the convertTz value
directly, and the value here
// is ignored.
- this(None)
+ this(None, isMR = false)
Review comment:
No problem!
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