[hive] branch branch-2.2 updated: HIVE-22480: IndexOutOfBounds exception while reading ORC files written with empty positions list in first row index entry (Jesus Camacho Rodriguez, reviewed by Prasanth Jayachandran)

[jc...@apache.org]

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jcamacho pushed a commit to branch branch-2.2
in repository https://gitbox.apache.org/repos/asf/hive.git


View the commit online:
https://github.com/apache/hive/commit/67f9139f07942e96bfa8324e5b8fb7b64ff40c0f

The following commit(s) were added to refs/heads/branch-2.2 by this push:
     new 67f9139  HIVE-22480: IndexOutOfBounds exception while reading ORC files written with empty positions list in first row index entry (Jesus Camacho Rodriguez, reviewed by Prasanth Jayachandran)
67f9139 is described below

commit 67f9139f07942e96bfa8324e5b8fb7b64ff40c0f
Author: Jesus Camacho Rodriguez <jc...@apache.org>
AuthorDate: Wed Nov 20 12:58:08 2019 -0800

    HIVE-22480: IndexOutOfBounds exception while reading ORC files written with empty positions list in first row index entry (Jesus Camacho Rodriguez, reviewed by Prasanth Jayachandran)
---
 orc/src/java/org/apache/hive/orc/impl/RecordReaderUtils.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/orc/src/java/org/apache/hive/orc/impl/RecordReaderUtils.java b/orc/src/java/org/apache/hive/orc/impl/RecordReaderUtils.java
index 16af69d..4f9a0fb 100644
--- a/orc/src/java/org/apache/hive/orc/impl/RecordReaderUtils.java
+++ b/orc/src/java/org/apache/hive/orc/impl/RecordReaderUtils.java
@@ -248,7 +248,7 @@ public class RecordReaderUtils {
       if (!includedRowGroups[group]) continue;
       int posn = getIndexPosition(
           encoding.getKind(), type.getKind(), stream.getKind(), isCompressed, hasNull);
-      long start = index.getEntry(group).getPositions(posn);
+      long start = group == 0 ? 0 : index.getEntry(group).getPositions(posn);
       final long nextGroupOffset;
       boolean isLast = group == (includedRowGroups.length - 1);
       nextGroupOffset = isLast ? length : index.getEntry(group + 1).getPositions(posn);