[ORC-1082] FileDump and JsonFileDump do not correctly handle the case where the RowIndex does not have column statistics

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.0, 1.7.3
• Fix Version/s: 1.7.3
• Component/s: Java, tools
• Assignee: Yiqun Zhang
• Reporter: Yiqun Zhang
• Created: 09/Jan/22 07:59
• Updated: 10/Feb/22 08:05
• Resolved: 10/Jan/22 18:31

Description

Before we can get the ColumnStatistics from RowIndex we need to determine whether it exists or not.

entry.getStatistics(); does not return null at any time, and will return a default object when it is not set.
 

      OrcProto.ColumnStatistics colStats = entry.getStatistics();
      if (colStats == null) {
        buf.append("no stats at ");
      }

Issue Links

• links to: GitHub Pull Request #1003