amorynan commented on code in PR #15966:
URL: https://github.com/apache/doris/pull/15966#discussion_r1089863981
##########
fe/fe-core/src/main/java/org/apache/doris/catalog/Column.java:
##########
@@ -186,6 +188,11 @@ public void createChildrenColumn(Type type, Column column)
{
Column c = new Column(COLUMN_ARRAY_CHILDREN, ((ArrayType)
type).getItemType());
c.setIsAllowNull(((ArrayType) type).getContainsNull());
column.addChildrenColumn(c);
+ } else if (type.isMapType()) {
+ Column k = new Column(COLUMN_MAP_KEY, ((MapType)
type).getKeyType());
+ Column v = new Column(COLUMN_MAP_VALUE, ((MapType)
type).getValueType());
Review Comment:
column K, V in columnMap should not be null ?
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