Github user sureshsubbiah commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/67#discussion_r38118468
--- 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);
+ if (sourceColEnd == NULL) {
+ if (rdSeen || (sourceRowEnd == NULL))
+ return NULL;
+ else
+ return sourceRowEnd+1;
+ }
+ short len = 0;
+ len = sourceColEnd - sourceData;
+ if (rdSeen) {
+ sourceRowEnd = sourceColEnd;
+ hdfsLoggingRowEnd_ = sourceRowEnd;
+ if ((endOfRequestedRange_) &&
+ (sourceRowEnd >= endOfRequestedRange_))
+ *(sourceRowEnd +1)= RANGE_DELIMITER;
--- End diff --
I am nervous about adding to table data. What will happen if is '\002' in
table data? If we are assuming that '\002' will not be present, can you please
add a cqd or something that will allow us to change the RANGE_DELIMITER to
something else if necessary. If you agree, subsequent checkin will be good.
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