[IMPALA-10637] Bug in ValidWriteIdList comparison in AcidUtils

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Catalog
• Epic Color: ghx-label-7
• Assignee: Unassigned
• Reporter: Sourabh Goyal
• Created: 05/Apr/21 17:00
• Updated: 08/Apr/21 20:47

Description

There is a bug in this line of code in AcidUtils.java.

Example scenario:

For validWriteIdLists:

ValidWriteIdList a = new ValidReaderWriteIdList("default.test:1:1:1:");
ValidWriteIdList b = new ValidReaderWriteIdList("default.test:1:9223372036854775807::");

AcidUtils.compare(a, b) currently returns +1 whereas the expected answer is -1 since b is more recent.

cc - kishendas vihangk1