Github user selvaganesang commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/441#discussion_r60527463
--- Diff: core/sql/executor/ExHdfsScan.cpp ---
@@ -1378,9 +1423,27 @@ ExWorkProcRetcode ExHdfsScanTcb::work()
return WORK_OK;
}
+void ExHdfsScanTcb::setR2ColumnNull(Int32 colidx)
+{
+ Lng32 neededColIndex = 0;
+ Attributes * attr = NULL;
+ ExpTupleDesc * asciiSourceTD =
hdfsScanTdb().workCriDesc_->getTupleDescriptor(hdfsScanTdb().asciiTuppIndex_);
+ for (Lng32 i = 0; i < hdfsScanTdb().convertSkipListSize_; i++)
+ {
+ if (hdfsScanTdb().convertSkipList_[i] > 0)
+ {
+ attr = asciiSourceTD->getAttr(neededColIndex);
+ neededColIndex++;
+ if(attr->getOffset() == colidx)
+ {
+ *(short *)&hdfsAsciiSourceData_[attr->getNullIndOffset()] = -1;
+ }
+ }
+ }
+}
--- End diff --
I think both convertExpr() and moveColsConvertExpr() deals at a row level.
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