viirya commented on a change in pull request #24581: [SPARK-27675][SQL] do not
use MutableColumnarRow in ColumnarBatch
URL: https://github.com/apache/spark/pull/24581#discussion_r282950192
##########
File path:
sql/core/src/main/java/org/apache/spark/sql/vectorized/ColumnarBatch.java
##########
@@ -108,6 +111,170 @@ public InternalRow getRow(int rowId) {
public ColumnarBatch(ColumnVector[] columns) {
this.columns = columns;
- this.row = new MutableColumnarRow(columns);
+ this.row = new ColumnarBatchRow(columns);
}
}
+
+/**
+ * An internal class, which wraps an array of {@link ColumnVector} and
provides a row view.
+ */
+class ColumnarBatchRow extends InternalRow {
Review comment:
Make it `final class` like `ColumnarRow` and `MutableColumnarRow`?
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