ajantha-bhat opened a new pull request, #5419:
URL: https://github.com/apache/iceberg/pull/5419
`CREATE TABLE %s (id bigint, data string, category string) USING iceberg
PARTITIONED BY (category) TBLPROPERTIES('format-version' = '2')`
`ALTER TABLE %s DROP PARTITION FIELD category`
`ALTER TABLE %s DROP COLUMN category` -- throws NPE as mentioned in #5399
- Fields in a partition spec can belong to an older schema. So, keep a
schema id mapping in partition spec field.
- TODO: test and handle backward compatibility
- TODO: Same problem can exist for sort orders also. Need to modify spec
there as well.
Fixes #5399
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