maropu commented on a change in pull request #27747: [SPARK-30993][SQL] Use its
sql type for UDT when checking the type of length (fixed/var) or mutable
URL: https://github.com/apache/spark/pull/27747#discussion_r386080439
##########
File path:
sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/UnsafeRow.java
##########
@@ -95,6 +95,10 @@ public static int calculateBitSetWidthInBytes(int
numFields) {
}
public static boolean isFixedLength(DataType dt) {
+ if (dt instanceof UserDefinedType) {
+ return isFixedLength(((UserDefinedType) dt).sqlType());
+ }
+
Review comment:
nit: how about this format?
```
if (dt instanceof UserDefinedType) {
return isFixedLength(((UserDefinedType) dt).sqlType());
} else if (dt instanceof DecimalType) {
return ((DecimalType) dt).precision() <= Decimal.MAX_LONG_DIGITS();
} else {
return mutableFieldTypes.contains(dt);
}
```
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