Github user jiangxb1987 commented on a diff in the pull request:
https://github.com/apache/spark/pull/20316#discussion_r162520627
--- Diff:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedParquetRecordReader.java
---
@@ -50,6 +50,9 @@
* TODO: make this always return ColumnarBatches.
*/
public class VectorizedParquetRecordReader extends
SpecificParquetRecordReaderBase<Object> {
+ // TODO: make this configurable.
+ private static final int CAPACITY = 4 * 1024;
--- End diff --
If this is just an example, how about move it to the ColumnarBatchSuite?
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