Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/15513#discussion_r85184948 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/xml/xpath.scala --- @@ -68,11 +76,21 @@ case class XPathBoolean(xml: Expression, path: Expression) extends XPathExtract } } +// scalastyle:off line.size.limit @ExpressionDescription( - usage = "_FUNC_(xml, xpath) - Returns a short value that matches the xpath expression", - extended = "> SELECT _FUNC_('<a><b>1</b><b>2</b></a>','sum(a/b)');\n3") + usage = "_FUNC_(xml, xpath) - Returns a short value, or the value zero if no match is found, or a match is found but the value is non-numeric.", --- End diff -- `a short value` -> `a short integer value`
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