eldenmoon commented on code in PR #46639:
URL: https://github.com/apache/doris/pull/46639#discussion_r1909686602
##########
fe/fe-core/src/main/java/org/apache/doris/catalog/Column.java:
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@@ -888,12 +883,14 @@ public void checkSchemaChangeAllowed(Column other) throws
DdlException {
}
}
- if ((getDataType() == PrimitiveType.VARCHAR && other.getDataType() ==
PrimitiveType.VARCHAR) || (
- getDataType() == PrimitiveType.CHAR && other.getDataType() ==
PrimitiveType.VARCHAR) || (
- getDataType() == PrimitiveType.CHAR && other.getDataType() ==
PrimitiveType.CHAR)) {
- if (getStrLen() > other.getStrLen()) {
- throw new DdlException("Cannot shorten string length");
+ // Nested types only support changing the order and increasing the
length of the nested char type
+ // Char-type only support length growing
+ try {
+ if (!type.isSupportSchemaChangeForComplexType(other.type)) {
Review Comment:
ditto
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