change column logs to edges.
diff --git a/s2jobs/src/main/scala/org/apache/s2graph/s2jobs/wal/process/BuildTopFeaturesProcess.scala b/s2jobs/src/main/scala/org/apache/s2graph/s2jobs/wal/process/BuildTopFeaturesProcess.scala
index 048b470..52b2ff0 100644
--- a/s2jobs/src/main/scala/org/apache/s2graph/s2jobs/wal/process/BuildTopFeaturesProcess.scala
+++ b/s2jobs/src/main/scala/org/apache/s2graph/s2jobs/wal/process/BuildTopFeaturesProcess.scala
@@ -114,7 +114,7 @@
     val dimValColumnName = "dimVal"
 
     val rawFeatures = edges
-      .withColumn(dimValColumnName, explode(dimValExtractUDF(col("logs"))))
+      .withColumn(dimValColumnName, explode(dimValExtractUDF(col("edges"))))
 
     val dict = buildDictionary(ss, rawFeatures, param, dimValColumnName)