romibuzi commented on issue #4510:
URL: https://github.com/apache/iceberg/issues/4510#issuecomment-1161321533
Hi @itaise,
you need to change the partition specs of your table before writing the data
with the new partition:
```
spark.sql("ALTER TABLE my_iceberg_catalog.db.vaccinations DROP PARTITION
FIELD some_date")
spark.sql("ALTER TABLE my_iceberg_catalog.db.vaccinations ADD PARTITION
FIELD some_date_2")
```
This will not drop `some_date` from your data but only metadata
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