eldenmoon commented on code in PR #40573:
URL: https://github.com/apache/doris/pull/40573#discussion_r1778445365
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fe/fe-core/src/main/java/org/apache/doris/alter/SchemaChangeHandler.java:
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@@ -611,8 +611,9 @@ private boolean processModifyColumn(ModifyColumnClause
alterClause, OlapTable ol
if (!col.equals(modColumn)) {
typeChanged = true;
// TODO:the case where columnPos is not empty has not been
considered
- if (columnPos == null && col.getDataType() ==
PrimitiveType.VARCHAR
- && modColumn.getDataType() ==
PrimitiveType.VARCHAR) {
+ if (columnPos == null && (col.getDataType() ==
PrimitiveType.VARCHAR
+ && modColumn.getDataType() ==
PrimitiveType.VARCHAR)
+ || (col.getDataType().isVariantType() &&
modColumn.getDataType().isVariantType())) {
Review Comment:
VariantType and VariantType
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