karuppayya commented on a change in pull request #28715:
URL: https://github.com/apache/spark/pull/28715#discussion_r440603564
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/GenerateExec.scala
##########
@@ -226,18 +226,33 @@ case class GenerateExec(
"0"
}
val numOutput = metricTerm(ctx, "numOutputRows")
+ val requiredInput =
+ evaluateRequiredVariablesExpr(child.output,
+ input, parent.inputSet) ++ position ++ values
s"""
|${data.code}
|$initMapData
|int $numElements = ${data.isNull} ? 0 : ${data.value}.numElements();
|for (int $index = $init; $index < $numElements; $index++) {
| $numOutput.add(1);
| $updateRowData
- | ${consume(ctx, input ++ position ++ values)}
+ | ${consume(ctx, requiredInput)}
|}
""".stripMargin
}
+ /**
+ * Returns [ExprCode] for required attributes
+ */
+ private def evaluateRequiredVariablesExpr(
Review comment:
This method is required when we either project all column or project
none of the columns(except for the exploded columns).
There were couple of test failure
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/123751/testReport/
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