apache/parquet-java

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Apache Parquet Java

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Forks: 1.6k
Open beginner issues: 0
Indexed issues: 580
Avg merge: 3d 12h
Merged PRs (30d): 33

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

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580 open issues indexed

Allow empty row in parquet file Open

Component: Java Component: Parquet Priority: Major Type: task

apache/parquet-java#2602 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make "null decryptor" exception more informative Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2607 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Java module import error due to shaded package shaded.parquet.it.unimi.dsi.fastutil Open

Component: Avro Component: Parquet Priority: Major Type: bug

apache/parquet-java#2608 · 17 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
implicitly defining DEBUG mode in MessageColumnIO causes 80% performance overhead Open

Component: Parquet Priority: Critical Type: bug

apache/parquet-java#1622 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
AvroReadSupport.setRequestedProjection in 1.11.1+ not backwards compatible with MAPS Open

Component: Avro Component: Java Component: Parquet Priority: Minor Type: bug

apache/parquet-java#2610 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add zstd to `parquet.compression` description of ParquetOutputFormat Javadoc Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2612 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unwrap common Protobuf wrappers and logical Timestamps, Date, TimeOfDay Open

Component: Parquet Component: Protobuf Priority: Major Type: enhancement

apache/parquet-java#1624 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ConsecutiveChunkList's length field should be long instead of int Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2615 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Clean Up Code Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2617 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Deprecate Exceptions Class Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2619 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pluggable key material store Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1627 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Schema mismatch for reading Avro from parquet file with old schema version? Open

Component: Avro Component: Parquet Priority: Minor Type: bug

apache/parquet-java#1628 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-tools is affected by multiple CVEs Open

Component: Java Component: Parquet Priority: Blocker Type: bug

apache/parquet-java#2624 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add a new API in `PageReadStore` to return row ranges directly Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2627 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Data masking(null) for column encryption Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1629 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-cli not working in release 1.12.0 Open

Component: CLI Component: Parquet Priority: Major Type: bug

apache/parquet-java#2630 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet file containing arrays, written by Parquet-MR, cannot be read again by Parquet-MR Open

Component: Avro Component: Parquet Priority: Blocker Type: bug

apache/parquet-java#2631 · 18 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Upgrade to JDK 9+ Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2636 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
The number of values in a miniblock should be multiple of 32 instead of 8 in DeltaBinaryPackingConfig Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2639 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Encryption translation tool - Parquet-cli Open

Component: Parquet Priority: Major Type: task

apache/parquet-java#2643 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Different created_by field values for application and library Open

Component: Java Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2646 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add rewriter version to Parquet footer Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2649 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Clarified what is compressed in pages Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2652 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add more methods into interface of BlockCipher Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2653 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Merging two valid parquet files produces a corrupted result file in 1.12.1 Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2654 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-cli broken in master Open

Component: CLI Component: Parquet Priority: Major Type: bug

apache/parquet-java#2657 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Specification for RLEDictionary encoding is incorrect. Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2660 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Eliminate unnecessary warning when compile Open

Component: Java Component: Parquet Priority: Trivial Type: enhancement

apache/parquet-java#2663 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cell Level Encryption Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2664 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Adding Bloom filter to small Parquet file bloats in size X1700 Open

Component: CLI Component: Java Component: Parquet Priority: Critical Type: bug

apache/parquet-java#2667 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetFileReader has a currentBlock information in a private field Open

Component: Avro Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2668 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Thread safety bug in CodecFactory Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2669 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support Quantile Compression q_compress column codec Open

Component: C++ Component: Format Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2672 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Performance optimizations: Merged all LittleEndianDataInputStream functionality into ByteBufferInputStream Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2674 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-cli unable to read UUID values Open

Component: CLI Component: Parquet Priority: Minor Type: bug

apache/parquet-java#1641 · 13 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Controlling memory utilization by ParquetReader Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2679 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-cli with hadoop throws java.lang.RuntimeException on any parquet file access Open

Component: CLI Component: Parquet Priority: Blocker Type: bug

apache/parquet-java#2681 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
AvroParquetWriter write to s3 bucket throws data intergrity exception Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#2684 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement async IO for Parquet file reader Open

Component: Java Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#2686 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Drop Hadoop 2 input stream reflection from parquet-hadoop Open

Component: Java Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2688 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
zstd compressor and decompressor use the same configuration Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2689 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Cannot read schema from parquet file Open

Component: Avro Component: Parquet Priority: Major Type: bug

apache/parquet-java#2690 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Column bloom filter: Show bloom filters in tools Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#2693 · 4 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
remove deprecated PathGlobPattern and DeprecatedFieldProjectionFilter to compile on hadoop 3.2+ Open

Component: Parquet Component: Thrift Priority: Major Type: enhancement

apache/parquet-java#2698 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet writer runs into OOM during writing Open

Component: Avro Component: Parquet Priority: Blocker Type: bug

apache/parquet-java#2699 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Potential bug in ParquetWriteProtocol Open

Component: Parquet Priority: Minor Type: bug

apache/parquet-java#2701 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Empty projection returns the wrong number of rows when column index is enabled Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#2702 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Encrypting the entire table is impossible Open

Component: Java Component: Parquet Priority: Major Type: bug

apache/parquet-java#1645 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
make the default behavior for proto writing not-backwards compatible Open

Component: Parquet Component: Protobuf Priority: Minor Type: enhancement

apache/parquet-java#2707 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-cli fails at supporting parquet-protobuf generated files Open

Component: CLI Component: Parquet Priority: Critical Type: bug

apache/parquet-java#2708 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/parquet-java

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