Github user DaveBirdsall commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/60#discussion_r37246073
--- Diff: core/sql/optimizer/NATable.cpp ---
@@ -1472,58 +1478,161 @@ static ItemExpr *
getRangePartitionBoundaryValuesFromEncodedKeys(
// value. Note that the buffer has a prefix of some bytes
with actual key
// values, followed by bytes that are zeroed out.
+ // the number of bytes actually provided in the key (not
filled in)
+ int numBytesInProvidedVal = encodedKeyLen-valOffset;
+
+ if (nullHdrSize && numBytesInProvidedVal <= 0)
--- End diff --
The condition numBytesInProvidedVal <= 0 should always be true by
definition of columnIsPartiallyProvided. Doesn't hurt anything though, just
makes reading more complicated.
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