Github user selvaganesang commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/67#discussion_r38135059
--- Diff: core/sql/executor/ExHdfsScan.cpp ---
@@ -1427,24 +1424,28 @@ char *
ExHdfsScanTcb::extractAndTransformAsciiSourceToSqlRow(int &err,
else
attr = NULL;
- if (!isTrailingMissingColumn)
- sourceColEnd = strchr(sourceData, delimiter);
-
- if(!isTrailingMissingColumn)
- {
- short len = 0;
- if (sourceColEnd &&
- sourceColEnd <= sourceDataEnd)
- len = sourceColEnd - sourceData;
- else
- {
- len = sourceDataEnd - sourceData;
- if (i != hdfsScanTdb().convertSkipListSize_ - 1)
- isTrailingMissingColumn = TRUE;
- }
-
- if (attr) // this is a needed column. We need to convert
- {
+ if (!isTrailingMissingColumn) {
+ sourceColEnd = hdfs_strchr(sourceData, rd, cd, sourceDataEnd,
&rdSeen);
--- End diff --
This behavior is not changed with the modified code. See few lines below
wherein the code determines the null value based on the content and the length
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