Zoltan Haindrich created HIVE-24830: ---------------------------------------
Summary: Revise RowSchema mutability usage Key: HIVE-24830 URL: https://issues.apache.org/jira/browse/HIVE-24830 Project: Hive Issue Type: Bug Reporter: Zoltan Haindrich Assignee: Zoltan Haindrich RowSchema is essentially a container class for a list of fields. * it can be constructed from a "list" * the list can be set * the list can be accessed none of the above methods try to protect the data inside; hence the following could easily happen: {code} s=o1.getSchema(); col=s.getCol("favourite") col.setInternalName("asd"); // will modify o1 schema newSchema.add(col); o2.setSchema(newSchema); o2.getSchema().get("asd").setInternalName("xxx"); // will modify o1 and o2 schema [...] {code} not sure how much of this is actually cruical; exploratory testrun revealed some cases https://github.com/apache/hive/pull/2019 -- This message was sent by Atlassian Jira (v8.3.4#803005)