Antalya 26.6: Antalya 26.3 Backport - Added test cases for s3 encoding fix

[zvonand]

Changelog category (leave one):

• Bug Fix (user-visible misbehavior in an official stable release)

Changelog entry (a user-readable short description of the changes that goes to CHANGELOG.md):

Backport of #1516, unit/integration tests added. The original fix was in the resolveObjectStorageForPath function(Utils.cpp) which was renamed/rewritten to getProperFilePathFromMetadataInfo. The tests are to make sure % encoded URLs still work in iceberg. closes #1348 (#1781 by @subkanthi).

CI/CD Options

Exclude tests:

• Fast test
• Integration Tests
• Stateless tests
• Stateful tests
• Performance tests
• All with ASAN
• All with TSAN
• All with MSAN
• All with UBSAN
• All with Coverage
• All with Aarch64
• All Regression
• Disable CI Cache

Regression jobs to run:

• Fast suites (mostly <1h)
• Aggregate Functions (2h)
• Alter (1.5h)
• Benchmark (30m)
• ClickHouse Keeper (1h)
• Iceberg (2h)
• LDAP (1h)
• Parquet (1.5h)
• RBAC (1.5h)
• SSL Server (1h)
• S3 (2h)
• S3 Export (2h)
• Swarms (30m)
• Tiered Storage (2h)

Cherry-picked from #1781.

---

Documentation entry for user-facing changes

Backport of #1516, unit tests added.

[github-actions]

Workflow [PR], commit [2f346bc]

[subkanthi]

Local build does not have compiler errors

 Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 49s
[12717/16478] cd /root/Documents/ClickHouse/rust/workspace/polyglot &...cmake/config.toml --offline --locked -- -Cdefault-linker-libraries=no
   Compiling serde_core v1.0.228
   Compiling serde_json v1.0.150
   Compiling thiserror v1.0.69
   Compiling serde v1.0.228
   Compiling syn v2.0.118
   Compiling serde_derive v1.0.228
   Compiling thiserror-impl v1.0.69
   Compiling polyglot-sql v0.1.15
   Compiling _ch_rust_polyglot v0.1.0 (/root/Documents/ClickHouse/rust/workspace/polyglot)
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 47s
[16478/16478] Linking CXX executable programs/clickhouse

[zvonand]

@blau-ai fix compiler errors directly in this branch

[blau-ai]

Fixed the build failure and pushed directly to feature/antalya-26.6/pr-1781 (as requested) — commit cab296ae0ba.

What was broken

Build (amd_debug) and Build (arm_debug) failed compiling the new unit test:

src/Storages/ObjectStorage/DataLakes/Iceberg/tests/gtest_iceberg_path_resolver.cpp:9:19:
  error: use of undeclared identifier 'getProperFilePathFromMetadataInfo'

(same error at lines 18, 27, 36 → ninja: build stopped)

Root cause

The backported test (from 1338_fix_3_decoding_antaly_26_3) calls the free function
DB::Iceberg::getProperFilePathFromMetadataInfo(data_path, common_path, table_location).
That function exists in antalya-26.3, but in 26.6 the same logic was refactored
into IcebergPathResolver::resolve() (.../Iceberg/IcebergPath.h / IcebergPath.cpp).
So the symbol simply does not exist on this branch — only the tests were backported, not the old API.

Fix

Rewrote the four test cases against the current IcebergPathResolver API. The mapping is 1:1:

getProperFilePathFromMetadataInfo(data_path, common_path, table_location)
  == IcebergPathResolver(table_location, /*table_root=*/common_path)
         .resolve(IcebergPathFromMetadata::deserialize(data_path))

resolve() performs the identical prefix-stripping via pure string ops, so the
percent-encoding-preservation expectations are unchanged (%2F, %20, multi-segment,
and the http:// scheme case all keep their asserted results). No production code was touched.

Note / verification

I can't build or run tests in this environment, so the compile fix is validated by CI on this
PR — please watch the re-run of Build (amd_debug) / Build (arm_debug).

The failing Regression … / Stateless tests checks are separate from this build error and were
not addressed here; let me know if you'd like me to triage those next.