Initial-neko edited a comment on issue #3521:
URL: https://github.com/apache/iceberg/issues/3521#issuecomment-966789613
```
/**
* skip the AbstractConstraint comparison
* @param rawSchema
* @param newSchema
* @return
*/
public boolean schemaCompare(TableSchema rawSchema, TableSchema newSchema){
UniqueConstraint rawPK = rawSchema.getPrimaryKey().orElse(null);
UniqueConstraint newPK = newSchema.getPrimaryKey().orElse(null);
boolean exp =
rawSchema.getTableColumns().equals(newSchema.getTableColumns()) &&
rawSchema.getWatermarkSpecs().equals(newSchema.getWatermarkSpecs());
boolean exp2 = rawPK != null && newPK != null ?
rawPK.getColumns().equals(newPK.getColumns()) &&
rawPK.getType().equals(newPK.getType()) : true;
return exp && exp2;
}
```
this new compare code can solve this problem. But I'm a new member of the
community. Can anyone give me some suggestions，Thanks！
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