Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21070#discussion_r186357371
--- Diff:
sql/core/src/main/java/org/apache/spark/sql/execution/datasources/parquet/VectorizedPlainValuesReader.java
---
@@ -63,115 +59,157 @@ public final void readBooleans(int total,
WritableColumnVector c, int rowId) {
}
}
+ private ByteBuffer getBuffer(int length) {
+ try {
+ return in.slice(length).order(ByteOrder.LITTLE_ENDIAN);
--- End diff --
does `in.slice(length)` do copy?
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