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[SPARK-17963][SQL][Documentation] Add examples (extend) in each expression and improve documentation #15677

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[SPARK-17963][SQL][Documentation] Add examples (extend) in each expression and improve documentation #15677

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28edbd7
Add examples (extend) in each function and improve documentation with…
HyukjinKwon Oct 17, 2016
4ed9d03
no extra newline
HyukjinKwon Nov 2, 2016
6ad2068
Fix another typo
HyukjinKwon Nov 2, 2016
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Fix another typo
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@HyukjinKwon
HyukjinKwon committed Nov 2, 2016
commit 6ad2068bae420ab8f61b20cb165038d841352436
2 changes: 1 addition & 1 deletion ...alyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala
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Expand Up @@ -121,7 +121,7 @@ case class MapValues(child: Expression)
*/
// scalastyle:off line.size.limit
@ExpressionDescription(
usage = "_FUNC_(array[, ascendingOrder]) - Sorts the input array in ascending / descending order according to the natural ordering of the array elements.",
usage = "_FUNC_(array[, ascendingOrder]) - Sorts the input array in ascending or descending order according to the natural ordering of the array elements.",
extended = """
Examples:
> SELECT _FUNC_(array('b', 'd', 'c', 'a'), true);
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1 change: 1 addition & 0 deletions sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/nullExpressions.scala
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Expand Up @@ -93,6 +93,7 @@ case class Coalesce(children: Seq[Expression]) extends Expression {
}
}


@ExpressionDescription(
usage = "_FUNC_(expr1, expr2) - Returns `expr2` if `expr1` is null, or `expr1` otherwise.",
extended = """
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