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new d147799 [SPARK-34268][SQL][DOCS] Correct the documentation of the
concat_ws function
d147799 is described below
commit d1477990064b3b08f4b240fe373c59f57a39259f
Author: Yuming Wang <[email protected]>
AuthorDate: Thu Jan 28 14:06:36 2021 +0900
[SPARK-34268][SQL][DOCS] Correct the documentation of the concat_ws function
### What changes were proposed in this pull request?
This pr correct the documentation of the `concat_ws` function.
### Why are the changes needed?
`concat_ws` doesn't need any str or array(str) arguments:
```
scala> sql("""select concat_ws("s")""").show
+------------+
|concat_ws(s)|
+------------+
| |
+------------+
```
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
```
build/sbt "sql/testOnly *.ExpressionInfoSuite"
```
Closes #31370 from wangyum/SPARK-34268.
Authored-by: Yuming Wang <[email protected]>
Signed-off-by: HyukjinKwon <[email protected]>
(cherry picked from commit 01d11da84ef7c3abbfd1072c421505589ac1e9b2)
Signed-off-by: HyukjinKwon <[email protected]>
---
.../org/apache/spark/sql/catalyst/expressions/stringExpressions.scala | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git
a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
index 9f92181..37ca8ee 100755
---
a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
+++
b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala
@@ -49,11 +49,13 @@ import org.apache.spark.unsafe.types.{ByteArray, UTF8String}
*/
// scalastyle:off line.size.limit
@ExpressionDescription(
- usage = "_FUNC_(sep, [str | array(str)]+) - Returns the concatenation of the
strings separated by `sep`.",
+ usage = "_FUNC_(sep[, str | array(str)]+) - Returns the concatenation of the
strings separated by `sep`.",
examples = """
Examples:
> SELECT _FUNC_(' ', 'Spark', 'SQL');
Spark SQL
+ > SELECT _FUNC_('s');
+
""",
since = "1.5.0")
// scalastyle:on line.size.limit
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