MaxGekk commented on a change in pull request #32714:
URL: https://github.com/apache/spark/pull/32714#discussion_r642934371
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File path: docs/sql-migration-guide.md
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@@ -91,6 +91,8 @@ license: |
- In Spark 3.2, `CREATE TABLE AS SELECT` with non-empty `LOCATION` will
throw `AnalysisException`. To restore the behavior before Spark 3.2, you can
set `spark.sql.legacy.allowNonEmptyLocationInCTAS` to `true`.
+ - In Spark 3.2, the special datetime values such as `epoch`, `today`,
`yesterday`, `tomorrow` and `now` are supported in typed literals only, for
instance `select timestamp'now'`. In Spark 3.1 and earlier, such special values
are supported in any casts of strings to dates/timestamps. To restore the
behavior before Spark 3.2, you should preprocess string columns and convert the
strings to desired timestamps explicitly using UDF for instance.
Review comment:
I agree that builtin functions is better suggestion. Let me update this.
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