manuzhang opened a new issue, #8655:
URL: https://github.com/apache/iceberg/issues/8655
### Apache Iceberg version
1.2.1
### Query engine
Spark
### Please describe the bug 🐞
1. import parquet table into iceberg table with `add_files` procedure
2. read iceberg table failed with following exception
```
Caused by: org.apache.spark.SparkException: Job aborted due to stage
failure: Task 7 in stage 0.0 failed 2 times, most recent failure: Lost task 7.1
in stage 0.0 (TID 152)
(hdc34-lvs05-01-0310-6208-042-tess0172.stratus.lvs.ebay.com executor 3):
java.lang.IllegalStateException: Value at index is null
at
org.apache.iceberg.shaded.org.apache.arrow.vector.TimeStampVector.get(TimeStampVector.java:74)
at
org.apache.iceberg.arrow.vectorized.GenericArrowVectorAccessorFactory$TimestampMicroTzAccessor.getLong(GenericArrowVectorAccessorFactory.java:501)
at
org.apache.iceberg.spark.data.vectorized.IcebergArrowColumnVector.getLong(IcebergArrowColumnVector.java:101)
at
org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage1.processNext(Unknown
Source)
at
org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43)
at
org.apache.spark.sql.execution.WholeStageCodegenExec$$anon$1.hasNext(WholeStageCodegenExec.scala:756)
```
3. I narrow down the issue to a timestamp column containing null values
4. inserting parquet table into iceberg table doesn't have this issue
5. I compare the table metrics. The only difference is that column's
`lower_bound` and `upper_bound` are null from the imported file
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