deniskuzZ commented on code in PR #6144:
URL: https://github.com/apache/hive/pull/6144#discussion_r2495071278
##########
ql/src/java/org/apache/hadoop/hive/ql/udf/UDFJson.java:
##########
@@ -239,11 +239,12 @@ private Object extract(Object json, String path, boolean
skipMapProc) {
indexListCache.put(path, indexList);
}
- if (indexList.size() > 0) {
- json = extract_json_withindex(json, indexList);
+ if (indexList.isEmpty()) {
+ // Return null if index is invalid.
+ return path.contains("[") ? null : json;
Review Comment:
````
if (indexList.size() > 0) {
json = extract_json_withindex(json, indexList);
} else if (path.indexOf('[') >= 0) {
return null;
}
````
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