Github user sameeragarwal commented on a diff in the pull request:
https://github.com/apache/spark/pull/14176#discussion_r73036933
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala
---
@@ -279,9 +280,15 @@ case class HashAggregateExec(
.map(_.asInstanceOf[DeclarativeAggregate])
private val bufferSchema =
StructType.fromAttributes(aggregateBufferAttributes)
- // The name for Vectorized HashMap
- private var vectorizedHashMapTerm: String = _
- private var isVectorizedHashMapEnabled: Boolean = _
+ // The name for Fast HashMap
+ private var fastHashMapTerm: String = _
+ // whether vectorized hashmap or row based hashmap is enabled
+ // we make sure that at most one of the two flags is true
+ // i.e., assertFalse(isVectorizedHashMapEnabled &&
isRowBasedHashMapEnabled)
+ private var isVectorizedHashMapEnabled: Boolean = false
+ private var isRowBasedHashMapEnabled: Boolean = false
+ // auxiliary flag, true if any of two above is true
+ private var isFastHashMapEnabled: Boolean = false
--- End diff --
`isFastHashMapEnabled = isVectorizedHashMapEnabled ||
isRowBasedHashMapEnabled`?
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