danny0405 commented on code in PR #10313:
URL: https://github.com/apache/hudi/pull/10313#discussion_r1423548002
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hudi-hadoop-mr/src/main/java/org/apache/hudi/hadoop/utils/HoodieRealtimeInputFormatUtils.java:
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@@ -86,7 +86,7 @@ private static Configuration addProjectionField(Configuration
conf, String field
public static void addProjectionField(Configuration conf, String[]
fieldName) {
if (fieldName.length > 0) {
- List<String> columnNameList =
Arrays.stream(conf.get(serdeConstants.LIST_COLUMNS).split(",")).collect(Collectors.toList());
+ List<String> columnNameList =
Arrays.stream(conf.get(serdeConstants.LIST_COLUMNS,
"").split(",")).collect(Collectors.toList());
Arrays.stream(fieldName).forEach(field -> {
Review Comment:
When the `LIST_COLUMNS` and when not?
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