agrawalpooja commented on a change in pull request #24151: [SPARK-26739][SQL]
Standardized Join Types for DataFrames
URL: https://github.com/apache/spark/pull/24151#discussion_r268688898
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File path: mllib/src/main/scala/org/apache/spark/ml/recommendation/ALS.scala
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@@ -44,6 +44,7 @@ import org.apache.spark.mllib.linalg.CholeskyDecomposition
import org.apache.spark.mllib.optimization.NNLS
import org.apache.spark.rdd.RDD
import org.apache.spark.sql.{DataFrame, Dataset}
+import org.apache.spark.sql.catalyst.plans._
Review comment:
@HyukjinKwon yep, initially I created an enum and was using that. But,
later someone pointed out in JIRA that we already have a JoinType class which
we can reuse here.
Is it fine if I use a enum here?
(The motive is to have a standardised join types and detect the invalid join
types at compile time itself)
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