sollhui opened a new pull request, #64941:
URL: https://github.com/apache/doris/pull/64941
### What problem does this PR solve?
Related PR: #64684
Azure filesystem glob listing previously used only the longest static prefix
for object listing, then filtered matched blobs in FE. For bounded glob
patterns such as `date=2025-{0[3-9],1[0-2]}-01`, this could still scan a broad
prefix like `date=2025-`.
This PR extracts reusable object-storage glob helper logic into the
filesystem SPI layer and makes Azure glob listing reuse the safe
expanded-prefix strategy. Azure now lists safely enumerable prefixes remotely,
while preserving FE-side regex matching, `startAfter`, directory-marker
filtering, and `maxFiles` / `maxBytes` limit behavior.
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