plusplusjiajia opened a new pull request, #9198:
URL: https://github.com/apache/paimon/pull/9198
### Purpose
pypaimon can list and drop partitions but not create them — Catalog has no
create_partitions. Registering the partitions of a directory written outside
Paimon (a format table populated by a copy or an external job) therefore has no
Python API.
Adds it across the three layers, mirroring Java:
- CreatePartitionsRequest / CreatePartitionsResponse DTOs, with the Java
field names. ignoreIfExists is on the wire here, unlike CreateTagRequest where
it is client-side.
- RESTApi.create_partitions POSTs to the existing partitions path and
returns the response.
- RESTCatalog.create_partitions maps the four REST errors as Java does:
NoSuchResource → TableNotExist, Forbidden → TableNoPermission, AlreadyExists →
IllegalState, BadRequest → IllegalArgument.
IllegalStateError is new.
No table-type guard, matching Java — only dropPartitions checks, because it
moves data. An empty spec list returns without issuing a request, so the "diff
and create what is missing" flow needs no guard of its own.
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