wenlong88 commented on a change in pull request #19188:
URL: https://github.com/apache/flink/pull/19188#discussion_r831711483
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File path:
flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/functions/casting/ArrayToArrayCastRule.java
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@@ -109,7 +110,7 @@ protected String generateCodeBlockInternal(
private static String arrayElementType(LogicalType t) {
if (t.isNullable()) {
- return "Object";
+ return CodeGenUtils.boxedTypeTermForType(t);
}
switch (t.getTypeRoot()) {
case BOOLEAN:
Review comment:
hi, I think it would be better to use
CodeGenUtils.primitiveTypeTermForType instead, what do you think?
Maybe we need to check isPrimitiveNullable first when t is nullable, if it
is true, we should use primitiveType instead of boxedType.
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