yaooqinn commented on code in PR #42153:
URL: https://github.com/apache/spark/pull/42153#discussion_r1275658166
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/stringExpressions.scala:
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@@ -53,13 +53,17 @@ 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`, skipping null values.",
Review Comment:
It looks like Pg got the wrong answer
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