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Nimble syncs from fbcode repeatedly break the build on missing field initializers

Status: Open.

#18643 In facebookincubator/velox;

· kgpai opened on Aug 23, 2026

MmapAllocator assumes 4KB pages; fails on Grace/GH200's default 64KB page size

bugSomething isn't workingSomething isn't working

Status: Open.

#18617 In facebookincubator/velox;

· karthikeyann opened on Aug 21, 2026

docker-compose build CMake failures

build

triageNewly created issue that needs attention.Newly created issue that needs attention.

Status: Open.

#18606 In facebookincubator/velox;

· MikaelSmith opened on Aug 20, 2026

VectorHasher can lose timestamp precision in generic value-id paths

enhancementNew feature or requestNew feature or request

Status: Open.

#18597 In facebookincubator/velox;

· rui-mo opened on Aug 20, 2026

Performance of Spark count / sum / avg when they are abandoned in partial aggregate

enhancementNew feature or requestNew feature or request

Status: Open.

#18569 In facebookincubator/velox;

· zhztheplayer opened on Aug 19, 2026

cuDF: mixed IN-list x IN (1, NULL) should return NULL (not false) for non-matching rows

Status: Open.

#18560 In facebookincubator/velox;

· pramodsatya opened on Aug 18, 2026

Add native Hudi connector with MERGE_ON_READ (MOR) snapshot read support

Status: Open.

#18530 In facebookincubator/velox;

· jja725 opened on Aug 17, 2026

Segmented aggregation bypasses abandonPartialAggregation and its flush counters

Status: Open.

#18519 In facebookincubator/velox;

· kaikalur opened on Aug 14, 2026

Spark string-to-timestamp cast: ' ' separator and hour-only time diverge from Spark

Status: Open.

#18515 In facebookincubator/velox;

· Smallfu666 opened on Aug 14, 2026

cuDF: parse_datetime cannot parse month or weekday names on device

Status: Open.

#18514 In facebookincubator/velox;

· dan13bauer opened on Aug 14, 2026

cuDF: Evaluate recurring timezone rules on device (requires a custom kernel)

Status: Open.

#18488 In facebookincubator/velox;

· dan13bauer opened on Aug 12, 2026

SIGSEGV in cuDF CastFunction::eval: constant operands are dropped before eval but read unconditionally

Status: Open.

#18486 In facebookincubator/velox;

· dan13bauer opened on Aug 12, 2026