Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/7840#discussion_r36036785
--- Diff:
sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
---
@@ -363,15 +363,19 @@ public Decimal getDecimal(int ordinal, int precision,
int scale) {
@Override
public UTF8String getUTF8String(int ordinal) {
assertIndexIsValid(ordinal);
- return isNullAt(ordinal) ? null :
UTF8String.fromBytes(getBinary(ordinal));
--- End diff --
Is there any chance that avoiding this copy could lead to a bug? It's
probably unlikely, given that we'd probably use separate UnsafeRow pointers
when comparing two rows.
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