Github user hyunsik commented on a diff in the pull request:
https://github.com/apache/tajo/pull/71#discussion_r15207047
--- Diff:
tajo-core/src/main/java/org/apache/tajo/engine/planner/LogicalPlanner.java ---
@@ -260,7 +262,8 @@ private void setRawTargets(PlanContext context,
Target[] targets, String[] refer
Target [] rawTargets = new Target[projection.getNamedExprs().length];
for (int i = 0; i < projection.getNamedExprs().length; i++) {
NamedExpr namedExpr = projection.getNamedExprs()[i];
- EvalNode evalNode = exprAnnotator.createEvalNode(plan, block,
namedExpr.getExpr());
+ EvalNode evalNode = exprAnnotator.createEvalNode(plan, block,
namedExpr.getExpr(),
--- End diff --
name references in select list can be only actual column names. They are
addressed in the manner at
https://github.com/apache/tajo/pull/71/files#diff-c11c2244fea624cb7b08f6906d554cd4R470.
In contrast, setRawTargets() in visitProjection should deal with actual
fields as well as temporal fields generated by common subexpression
elimination. So, it should use RELS_AND_SUBEXPRS.
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