LuciferYang commented on code in PR #44598:
URL: https://github.com/apache/spark/pull/44598#discussion_r1441954433
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sql/core/src/main/java/org/apache/spark/sql/execution/datasources/orc/OrcColumnarBatchReader.java:
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@@ -186,7 +188,12 @@ public void initBatch(
int colId = requestedDataColIds[i];
// Initialize the missing columns once.
if (colId == -1) {
- OnHeapColumnVector missingCol = new OnHeapColumnVector(capacity, dt);
+ final WritableColumnVector missingCol;
Review Comment:
Is it possible to use `ConstantColumnVector` for the `missingCol`? This
maybe another story.
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