MaxGekk commented on code in PR #42655:
URL: https://github.com/apache/spark/pull/42655#discussion_r1304347466
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
##########
@@ -4185,6 +4185,18 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val LEGACY_NEGATIVE_INDEX_IN_ARRAY_INSERT =
+ buildConf("spark.sql.legacy.negativeIndexInArrayInsert")
+ .internal()
+ .doc("When set to true, restores the legacy behavior of `array_insert`
for " +
+ "negative indexes - 0-based: the function inserts new element before
the last one " +
+ "for the index -1. For example, `array_insert(['a', 'b'], -1, 'x')`
returns " +
+ "`['a', 'x', 'b']`. When set to false, the -1 index points out to the
last element, " +
+ "and the given example produces `['a', 'b', 'x']`.")
+ .version("3.5.0")
Review Comment:
done
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