[GitHub] [spark] srowen commented on a change in pull request #24500: [SPARK-27606][SQL] Deprecate 'extended' field in ExpressionDescription/ExpressionInfo

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srowen commented on a change in pull request #24500: [SPARK-27606][SQL] Deprecate 'extended' field in ExpressionDescription/ExpressionInfo
URL: https://github.com/apache/spark/pull/24500#discussion_r279871516
 
 

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 File path: sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/ExpressionDescription.java
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 @@ -88,6 +88,12 @@
 @Retention(RetentionPolicy.RUNTIME)
 public @interface ExpressionDescription {
     String usage() default "";
+    /**
+     * @deprecated This field is deprecated as of Spark 3.0. Use {@link #arguments},
 
 Review comment:
   I don't have a strong opinion, but generally think it's fine to deprecate things we know we want to deprecate sooner than later. 

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