amorynan commented on code in PR #26126:
URL: https://github.com/apache/doris/pull/26126#discussion_r1379660743
##########
fe/fe-common/src/main/java/org/apache/doris/catalog/MapType.java:
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@@ -192,8 +192,10 @@ protected String prettyPrint(int lpad) {
}
public static boolean canCastTo(MapType type, MapType targetType) {
- return Type.canCastTo(type.getKeyType(), targetType.getKeyType())
- && Type.canCastTo(type.getValueType(), targetType.getValueType());
+ return (targetType.getKeyType().isStringType() &&
type.getKeyType().isStringType()
Review Comment:
2. yes , and be will handle this
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