aiguofer commented on code in PR #38733:
URL: https://github.com/apache/arrow/pull/38733#discussion_r1395976591


##########
java/flight/flight-sql-jdbc-core/src/main/java/org/apache/arrow/driver/jdbc/converter/impl/FixedSizeListAvaticaParameterConverter.java:
##########
@@ -33,6 +37,33 @@ public 
FixedSizeListAvaticaParameterConverter(ArrowType.FixedSizeList type) {
 
   @Override
   public boolean bindParameter(FieldVector vector, TypedValue typedValue, int 
index) {
+    final List<?> values = (List<?>) typedValue.value;
+
+    if (vector instanceof FixedSizeListVector) {
+      FixedSizeListVector listVector = ((FixedSizeListVector) vector);
+      FieldVector childVector = listVector.getDataVector();
+      if (values.size() > listVector.getListSize()) {

Review Comment:
   For any vector, if you set value count to more items than you've actually 
set, the rest just get set to `null` right? when we set the listvector's value 
count it handles setting the value count on the child vector. 



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