XiaoHongbo-Hope opened a new pull request, #6501:
URL: https://github.com/apache/paimon/pull/6501
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[core][rest] Add schema validation and inference for REST catalog external
tables
### Purpose
Currently, REST catalog supported external tables but did not validate
schema consistency between the filesystem and server-side schema. External
tables always required explicit schema definition even when schema already
existed in the filesystem.
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<!-- What is the purpose of the change -->
This PR
Enhances REST catalog external table creation with schema inference and
validation:
- Validates client-provided schema against filesystem schema before creating
table metadata
- Enables creating external tables without explicit schema when schema
exists
in the location
Examples:
- CREATE TABLE t2 (id INT, name STRING) USING paimon LOCATION 'path'
(explicit schema)
- CREATE TABLE t2 USING paimon LOCATION 'path' (schema inference, newly
supported)
### Tests
PaimonExternalTableTest
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### API and Format
<!-- Does this change affect API or storage format -->
### Documentation
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