[core][flink] supports reading blob descriptors from external storage#7231
Merged
JingsongLi merged 2 commits intoapache:masterfrom Feb 9, 2026
Merged
[core][flink] supports reading blob descriptors from external storage#7231JingsongLi merged 2 commits intoapache:masterfrom
JingsongLi merged 2 commits intoapache:masterfrom
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JingsongLi
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Feb 9, 2026
docs/content/append-table/blob.md
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| Specifically, if the storage system of the input BlobDescriptor differs from that used by Paimon, | ||
| you can specify the storage configuration for the input blob descriptor using the prefix | ||
| `blob-descriptor.io.`. For example, if the source data is stored in a different OSS endpoint, |
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Purpose
BlobDescriptor is an important feature in writing, with which Flink/Spark/users do not have to load the entire blob into memory. Currently, input blob descriptors share a same
FileIOconfiguration with Paimon, which means we cannot load some files from a different OSS endpoint.This PR introduces a config prefix. With which user can specify FileIO related options for input blob descriptor. i.e. oss AK, SK and endpoints.
Linked issue: none
Tests
For test, we mock different OSS endpoints by a IsolatedDirectoryFileIO, which is a LocalFileIO only permitting accessing the configured 'root directory'.
API and Format
This PR do not modify any existing APIs.
Documentation
Updated the Blob's documentation.