cloud-fan commented on code in PR #37631:
URL: https://github.com/apache/spark/pull/37631#discussion_r954000072
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docs/sql-migration-guide.md:
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@@ -28,6 +28,7 @@ license: |
- Since Spark 3.4, v1 database, table, permanent view and function
identifier will include 'spark_catalog' as the catalog name if database is
defined, e.g. a table identifier will be: `spark_catalog.default.t`. To restore
the legacy behavior, set `spark.sql.legacy.v1IdentifierNoCatalog` to `true`.
- Since Spark 3.4, when ANSI SQL mode(configuration
`spark.sql.ansi.enabled`) is on, Spark SQL always returns NULL result on
getting a map value with a non-existing key. In Spark 3.3 or earlier, there
will be an error.
- Since Spark 3.4, the SQL CLI `spark-sql` does not print the prefix `Error
in query:` before the error message of `AnalysisException`.
+ - Since Spark 3.4, `split` function ignores trailing empty strings when
`regex` parameter is empty and `limit` parameter is not specified or set to 0
or -1.
Review Comment:
```suggestion
- Since Spark 3.4, `split` function ignores trailing empty strings when
`regex` parameter is empty and `limit` parameter is not specified or set to a
non-positive number.
```
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