[GitHub] [spark] yaooqinn commented on a change in pull request #26922: [MINOR][SQL][DOC] Fix some ambiguous descriptions and format issue in Dataset API Doc

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yaooqinn commented on a change in pull request #26922: [MINOR][SQL][DOC] Fix some ambiguous descriptions and format issue in Dataset API Doc
URL: https://github.com/apache/spark/pull/26922#discussion_r358745360
 
 

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 File path: sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala
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 @@ -2498,6 +2498,13 @@ class Dataset[T] private[sql](
    *
    * Use [[summary]] for expanded statistics and control over which statistics to compute.
    *
+   * NOTES:
+   *  - String columns are countable, so count is accurate
+   *  - String columns are comparable, so min/max are accurate
 
 Review comment:
   yes, maybe I just over explained

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