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[Enhancement] Add Parquet reader fuzzer to catch buffer-reuse bugs across row groups

enhancementNew feature or requestNew feature or request

fuzzerIssues related the to Velox fuzzer test components.Issues related the to Velox fuzzer test components.

Status: Open.

#17765 In facebookincubator/velox;

· lifulong opened on Jun 8, 2026

Follow-up: improve type assertions in ParquetReaderTest after #17560

enhancementNew feature or requestNew feature or request

Status: Open.

#17743 In facebookincubator/velox;

· lifulong opened on Jun 5, 2026

Core dump when import UnknownType from arrow array

bugSomething isn't workingSomething isn't working

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

Status: Open.

#17731 In facebookincubator/velox;

· wecharyu opened on Jun 4, 2026

Iceberg Parquet writer does not honor max-target-file-size within a single writer

bugSomething isn't workingSomething isn't working

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

Status: Open.

#17729 In facebookincubator/velox;

· infvg opened on Jun 4, 2026

Mono-library fails to link on ARM without LSE atomics

bugSomething isn't workingSomething isn't working

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

Status: Open.

#17726 In facebookincubator/velox;

· bdice opened on Jun 4, 2026

Allow UnnestNode to skip unused output columns

enhancementNew feature or requestNew feature or request

Status: Open.

#17678 In facebookincubator/velox;

· mbasmanova opened on May 30, 2026

Add kAnti and kLeftSemiFilter support to NestedLoopJoinNode

Status: Open.

#17650 In facebookincubator/velox;

· mbasmanova opened on May 28, 2026

AssignUniqueIdNode::taskUniqueId is per-task state forced onto the plan node

bugSomething isn't workingSomething isn't working

Status: Open.

#17645 In facebookincubator/velox;

· mbasmanova opened on May 28, 2026

Make DWIO reader and writer options extensible per file format

enhancementNew feature or requestNew feature or request

Status: Open.

#17632 In facebookincubator/velox;

· PingLiuPing opened on May 27, 2026

Add extraction pushdown support for flat map column readers

enhancementNew feature or requestNew feature or request

Status: Open.

Feature

#17627 In facebookincubator/velox;

· Yuhta opened on May 26, 2026

DecimalUtil::kPowersOfTen overflows causing UB when casting string 6E-120 to decimal

bugSomething isn't workingSomething isn't working

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

Status: Open.

#17593 In facebookincubator/velox;

· zhztheplayer opened on May 22, 2026

Migrate all hive.parquet.writer.* configs from WriterConfig to the Hive config registration system

enhancementNew feature or requestNew feature or request

Status: Open.

#17589 In facebookincubator/velox;

· lifulong opened on May 22, 2026