morrySnow commented on code in PR #26105:
URL: https://github.com/apache/doris/pull/26105#discussion_r1375887224
##########
fe/fe-core/src/main/java/org/apache/doris/nereids/types/DataType.java:
##########
@@ -350,7 +350,7 @@ public static DataType fromCatalogType(Type type) {
} else if (type.isStructType()) {
List<StructField> structFields =
((org.apache.doris.catalog.StructType) (type)).getFields().stream()
.map(cf -> new StructField(cf.getName(),
fromCatalogType(cf.getType()),
- cf.getContainsNull(), cf.getComment()))
+ cf.getContainsNull(), cf.getComment() == null ? ""
: cf.getComment()))
Review Comment:
in Nereids, we should not make any attr be null, it is hard to process and
debug
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