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gangwu pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/orc.git


The following commit(s) were added to refs/heads/master by this push:
     new 06bc0a4  ORC-604: Check in StringDictionary.getValueByIndex is too 
permissive
06bc0a4 is described below

commit 06bc0a402d736a36639039459fe5d6f7c5510546
Author: Norbert Luksa <norbert.lu...@cloudera.com>
AuthorDate: Tue Mar 24 11:03:22 2020 +0100

    ORC-604: Check in StringDictionary.getValueByIndex is too permissive
    
    This fixes #487
---
 c++/include/orc/Vector.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/c++/include/orc/Vector.hh b/c++/include/orc/Vector.hh
index 6213769..752e1af 100644
--- a/c++/include/orc/Vector.hh
+++ b/c++/include/orc/Vector.hh
@@ -134,7 +134,7 @@ namespace orc {
     DataBuffer<int64_t> dictionaryOffset;
 
     void getValueByIndex(int64_t index, char*& valPtr, int64_t& length) {
-      if (index < 0 || static_cast<uint64_t>(index) >= 
dictionaryOffset.size()) {
+      if (index < 0 || static_cast<uint64_t>(index) + 1 >= 
dictionaryOffset.size()) {
         throw std::out_of_range("index out of range.");
       }
 

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