LuciferYang commented on code in PR #36616:
URL: https://github.com/apache/spark/pull/36616#discussion_r881205590
##########
sql/core/src/main/java/org/apache/spark/sql/execution/vectorized/OffHeapColumnVector.java:
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@@ -42,6 +43,27 @@ public static OffHeapColumnVector[] allocateColumns(int
capacity, StructType sch
return allocateColumns(capacity, schema.fields());
}
+ /**
+ * Allocates columns to store elements of each field of the schema,
+ * the constant column use `ConstantColumnVector` and others use
`OffHeapColumnVector`,
+ * this method assumes that all constant column are at the end of schema.
Review Comment:
ok
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