akshaytayal opened a new issue, #13181:
URL: https://github.com/apache/gluten/issues/13181

   Umbrella tracking issue for **re-enabling the Spark 4.2 unit tests that are 
currently disabled** to keep the `gluten-ut/spark42` CI green.
   
   Added in PR apache/gluten#13163 (GLUTEN-12569). **150 UTs** are disabled 
across **7 root-cause themes**. Each theme has its own sub-issue with the exact 
disabled tests, the disable mechanism, and the files updated. As the underlying 
Gluten/Velox support lands, remove the corresponding `.exclude(...)` / 
allowlist / `@Ignore` / `ignore(...)` entries and close the sub-issue.
   
   ### Sub-issues (7)
   
   - [ ] #13174 — Spark 4.2 Storage-Partitioned Join (SPJ) support in Gluten 
(29 tests)
   - [ ] #13175 — Spark 4.2 DSv2 row-level writes (DELETE/MERGE/UPDATE/INSERT) 
on Gluten path (39 tests)
   - [ ] #13176 — Floating-point collection semantics: -0.0/NaN normalization & 
RESPECT NULLS (12 tests)
   - [ ] #13177 — Golden-file drift on Spark 4.2 (TPC-DS plan-stability + 
SQLQueryTest .sql) (46 tests)
   - [ ] #13178 — Velox expression & operator gaps 
(math/TIME/date/broadcast/hash-agg) (6 tests)
   - [ ] #13179 — Spark 4.2 framework/API changes breaking Gluten tests 
(non-velox) (7 tests)
   - [ ] #13180 — File-source & Hive scan (Parquet/ORC 
ignoreMissingFiles/NullType, bucketed-scan AE, ADD JAR) (11 tests)
   
   ### Summary
   
   | # | Theme | Items | Sub-issue |
   |---|---|---:|---|
   | 1 | Spark 4.2 Storage-Partitioned Join (SPJ) support in Gluten | 29 | 
#13174 |
   | 2 | Spark 4.2 DSv2 row-level writes (DELETE/MERGE/UPDATE/INSERT) on Gluten 
path | 39 | #13175 |
   | 3 | Floating-point collection semantics: -0.0/NaN normalization & RESPECT 
NULLS | 12 | #13176 |
   | 4 | Golden-file drift on Spark 4.2 (TPC-DS plan-stability + SQLQueryTest 
.sql) | 46 | #13177 |
   | 5 | Velox expression & operator gaps (math/TIME/date/broadcast/hash-agg) | 
6 | #13178 |
   | 6 | Spark 4.2 framework/API changes breaking Gluten tests (non-velox) | 7 
| #13179 |
   | 7 | File-source & Hive scan (Parquet/ORC ignoreMissingFiles/NullType, 
bucketed-scan AE, ADD JAR) | 11 | #13180 |
   | | **Total** | **150** | |
   
   ### How these were disabled
   - `.exclude(...)` in `gluten-ut/spark42/.../velox/VeloxTestSettings.scala` 
(most suites, honoring `BackendTestSettings.shouldRun`)
   - allowlist removal in 
`gluten-ut/spark42/.../velox/VeloxSQLQueryTestSettings.scala` 
(`GlutenSQLQueryTestSuite` `.sql` golden tests — that suite ignores the exclude 
registry)
   - class-level `@org.scalatest.Ignore` for whole-suite aborts 
(`GlutenBloomFilterFallbackSuite`, `MiscOperatorSuite`, 
`GlutenWholeStageCodegenSuite`)
   - `test(...)->ignore(...)` for one standalone test 
(`GlutenAutoAdjustStageResourceProfileSuite`)
   
   All disables are CI-confirmed (local-only false-positives were removed via a 
validation run with excludes reverted).
   
   Related: PR apache/gluten#13163, GLUTEN-12569.
   


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