Github user rxin commented on a diff in the pull request: https://github.com/apache/spark/pull/6724#discussion_r32139179 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/functions.scala --- @@ -37,6 +37,7 @@ import org.apache.spark.util.Utils * @groupname normal_funcs Non-aggregate functions * @groupname math_funcs Math functions * @groupname window_funcs Window functions + * @groupname string_funcs functions for DataFrames. --- End diff -- "functions for DataFrames " -> "String functions"
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