Optimize code

apache · Feb 12, 2020 · 517251a · 517251a
1 parent e50f010
commit 517251a
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/sql/core/src/main/scala/org/apache/spark/sql/functions.scala b/sql/core/src/main/scala/org/apache/spark/sql/functions.scala
@@ -2375,6 +2375,8 @@ object functions {
   /**
    * Extract a specific group matched by a Java regex, from the specified string column.
    * If the regex did not match, or the specified group did not match, an empty string is returned.
+   * if the specified group index exceeds the group count of regex, an IllegalArgumentException
+   * will be throwing.
    *
    * @group string_funcs
    * @since 1.5.0
@@ -2385,8 +2387,9 @@ object functions {
 
   /**
    * Extract all specific groups matched by a Java regex, from the specified string column.
-   * If the regex did not match, return an empty array. if the specified group index exceeds the
-   * group count of regex, an IllegalArgumentException will be throwing.
+   * If the regex did not match, or the specified group did not match, return an empty array.
+   * if the specified group index exceeds the group count of regex, an IllegalArgumentException
+   * will be throwing.
    *
    * @group string_funcs
    * @since 3.0.0