Antalya 26.8: Implement TRUNCATE TABLE for Iceberg Engine (REST …

[zvonand]

Changelog category (leave one):

• New Feature

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

Frontport for Antalya 26.3

• 26.1 Antalya port - Implement TRUNCATE TABLE for Iceberg Engine (REST catalog support) Feature: Support TRUNCATE TABLE for Iceberg engine #1529, It's a frontport from 26.1, contains:
  • feat(iceberg): Implement TRUNCATE TABLE for Iceberg Engine (REST catalog support) — Core implementation: metadata-only truncation generating a new overwrite snapshot with empty manifest list, committed atomically via REST catalog
  • fix(iceberg): pass new_snapshot to updateMetadata in IcebergStorageSink — Fixed silent breakage of all INSERTs on REST catalog tables (wrong JSON object passed to catalog->updateMetadata)
  • fix(iceberg): restore return false in RestCatalog::updateMetadata — Preserve retry contract; add LOG_WARNING for diagnostics
  • fix(iceberg): revert Mutations.cpp updateMetadata to pass new_snapshot — Same fix as IcebergStorageSink, applied to ALTER TABLE DELETE/UPDATE path
  • refactor(iceberg): add comment explaining Avro zigzag encoding — Reviewer-requested documentation for manual Avro OCF serialization
  • refactor(iceberg): address code review feedback on TRUNCATE implementation — Named zero arguments, helper functions, restart integration test (feature (iceberg): Implement TRUNCATE TABLE for Iceberg Engine (REST … #1655 by @il9ue) (Antalya 26.6: Implement TRUNCATE TABLE for Iceberg Engine (REST … #2125 by @zvonand).

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 #2125.

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Adaptation notes for antalya-26.3

The following API changes between antalya-26.1 and antalya-26.3 required adaptation:

• RestCatalog constructor signature updated to match antalya-26.3 calling convention in DataLakeConfiguration.h
• DatabaseDataLakeSetting member names updated
• Cargo.lock restored to antalya-26.3 version (our changes do not touch any Rust code)

All feature logic is identical to the merged antalya-26.1 implementation.

[github-actions]

Workflow [PR], commit [f763dde]