szingerpeter commented on issue #7724:
URL: https://github.com/apache/hudi/issues/7724#issuecomment-1403478615
it's not supported.
```
pyspark.sql.utils.ParseException:
DataType timestamp(0) is not supported.(line 1, pos 11)
== SQL ==
CAST(_1 AS TIMESTAMP(0))
-----------^^^
```
```
spark.createDataFrame([['2022-01-01 01:01:01.000000']]).withColumn('test',
F.expr('CAST(_1 AS TIMESTAMP(0))'))
```
I guess for hudi to save the column as of type `timestamp`, the dataframe
must have a timestamp type as well rather than a timestamp formatted string,
right?
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