Issues

• Add integration tests for all parquet-testing files

  apache/parquet-java#3670 · Filter by author kevinjqliu opened on Jul 17, 2026
  4

• When planning to release with Vulnerability Fix CVE-2026-54512 and CVE-2026-54513

  Type: bug
  apache/parquet-java#3668 · Filter by author tejinfobelt opened on Jul 16, 2026
  2

• Close input readers when ParquetRewriter setup fails

  apache/parquet-java#3667 · Filter by author anxkhn opened on Jul 16, 2026

• Older parquet-java readers fail on files with unprojected VARIANT columns

  apache/parquet-java#3633 · Filter by author kevinjqliu opened on Jun 27, 2026
  1

• Introduce AssertJ for testing

  Type: enhancement
  apache/parquet-java#3615 · Filter by author nastra opened on Jun 19, 2026

• Add new sort order for int96 timestamps

  Type: enhancement
  apache/parquet-java#3609 · Filter by author divjotarora opened on Jun 11, 2026

• null_count is omitted for large columns in parquet files

  Type: bug
  apache/parquet-java#3574 · Filter by author mdibaiee opened on May 22, 2026
  1

• Harden variant decoding

  Type: enhancement
  apache/parquet-java#3561 · Filter by author steveloughran opened on May 14, 2026

• Properly close buffers

  Type: enhancement
  apache/parquet-java#3558 · Filter by author Fokko opened on May 13, 2026

• Automate the Release Process

  Type: enhancement
  apache/parquet-java#3547 · Filter by author RussellSpitzer opened on May 6, 2026
  4

• Apache Parquet Java Performance Improvements

  apache/parquet-java#3530 · Filter by author iemejia opened on Apr 28, 2026
  5

• Variant getFieldByKey() on large objects silently fails if variant metadata is unsorted

  Type: bug
  apache/parquet-java#3529 · Filter by author steveloughran opened on Apr 27, 2026
  4

  

• Breaking change in Avro 1.12.1 affects parquet-avro users: logical types now deserialize to different Java types

  apache/parquet-java#3515 · Filter by author laymain opened on Apr 21, 2026
  1

• Reduce allocation overhead of no-op GeospatialStatistics.Builder

  Type: enhancement
  apache/parquet-java#3507 · Filter by author arouel opened on Apr 19, 2026

• Avoid per-write virtual dispatch in DictionaryValuesWriter.shouldFallBack() by caching the size-exceeded check

  Type: enhancement
  apache/parquet-java#3501 · Filter by author arouel opened on Apr 19, 2026

• RequiresFallback.isCompressionSatisfying is too aggressive with current default page size

  Type: enhancement
  apache/parquet-java#3479 · Filter by author etseidl opened on Apr 14, 2026
  1

• AvroSchemaConverter silently drops typed_value when converting shredded variant schemas

  Type: bug
  apache/parquet-java#3477 · Filter by author nssalian opened on Apr 14, 2026
  6

  

• Error which block the compilation

  Type: bug
  apache/parquet-java#3468 · Filter by author Yao-MR opened on Apr 7, 2026

• Improve RunLengthBitPackingHybridDecoder.readNext to avoid per-call buffer allocation and DataInputStream wrapping

  Type: enhancement
  apache/parquet-java#3466 · Filter by author arouel opened on Apr 6, 2026

• Support stale PR workflow for inactive pull requests

  Type: enhancement
  apache/parquet-java#3408 · Filter by author ArnavBalyan opened on Mar 1, 2026

• Add support for Parquet Input Stream optimisations.

  apache/parquet-java#3386 · Filter by author ahmarsuhail opened on Jan 7, 2026
  4

• [parquet-cli] Illegal character in column name

  Type: bug
  apache/parquet-java#3364 · Filter by author malthe opened on Dec 2, 2025

• TestParquetReader fails with hadoop 3.4.2

  Type: bug
  apache/parquet-java#3356 · Filter by author annimesh2809 opened on Nov 13, 2025
  4

• The error message "is not a Parquet file" doesn't show the Parquet path anymore

  Type: bug
  apache/parquet-java#3354 · Filter by author felipepessoto opened on Nov 7, 2025
  1

• Why no bulk Arrow→Parquet write API in Java? How to avoid row-by-row RecordConsumer + optimize?

  apache/parquet-java#3353 · Filter by author Fenil-v opened on Nov 6, 2025
  1