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feat: replace UDF by built-in function in skewedJoin #666

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Merged
SemyonSinchenko merged 1 commit into from
Aug 6, 2025
Merged

feat: replace UDF by built-in function in skewedJoin #666

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5 changes: 1 addition & 4 deletions core/src/main/scala/org/graphframes/GraphFrame.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,6 @@ import org.apache.spark.sql.functions.expr
import org.apache.spark.sql.functions.lit
import org.apache.spark.sql.functions.monotonically_increasing_id
import org.apache.spark.sql.functions.struct
import org.apache.spark.sql.functions.udf
import org.apache.spark.sql.types._
import org.apache.spark.storage.StorageLevel
import org.graphframes.lib._
Expand Down Expand Up @@ -705,9 +704,7 @@ object GraphFrame extends Serializable with Logging {
a.join(b, joinCol)
} else {
logDebug(s"$logPrefix Skewed join with ${hubs.size} high-degree keys.")
val isHub = udf { id: T =>
hubs.contains(id)
}
val isHub = (c: Column) => c.isInCollection(hubs)
val hashJoined = a
.filter(!isHub(col(joinCol)))
.join(b.filter(!isHub(col(joinCol))), joinCol)
Expand Down