apache/parquet-java

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Apache Parquet Java

Stars: 3.1k
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 17, 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

Adding Bloom filter to small Parquet file bloats in size X1700 Open

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

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/parquet-java#2667 · 4 comments · Opened Feb 14, 2022
Cell Level Encryption Open

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

Difficulty 5/5 Over a week Newbie friendliness 15/100

apache/parquet-java#2664 · 1 comment · Opened Jan 27, 2022
Eliminate unnecessary warning when compile Open

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

Difficulty 3/5 1-2 days Newbie friendliness 25/100

apache/parquet-java#2663 · Opened Jan 26, 2022
Specification for RLEDictionary encoding is incorrect. Open

Component: Parquet Priority: Major Type: bug

Difficulty 1/5 Under an hour Newbie friendliness 42/100

apache/parquet-java#2660 · 1 comment · Opened Dec 10, 2021
parquet-cli broken in master Open

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

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/parquet-java#2657 · 3 comments · Opened Nov 23, 2021
Merging two valid parquet files produces a corrupted result file in 1.12.1 Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2654 · Opened Oct 7, 2021
Add more methods into interface of BlockCipher Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2653 · 5 comments · Opened Sep 30, 2021
Clarified what is compressed in pages Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 25/100

apache/parquet-java#2652 · Opened Sep 28, 2021
Add rewriter version to Parquet footer Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 15/100

apache/parquet-java#2649 · Opened Sep 20, 2021
Different created_by field values for application and library Open

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

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/parquet-java#2646 · 6 comments · Opened Sep 10, 2021
Encryption translation tool - Parquet-cli Open

Component: Parquet Priority: Major Type: task

Difficulty 5/5 Over a week Newbie friendliness 20/100

apache/parquet-java#2643 · Opened Aug 30, 2021
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

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

apache/parquet-java#2639 · Opened Aug 19, 2021
Upgrade to JDK 9+ Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2636 · 1 comment · Opened Aug 5, 2021
Parquet file containing arrays, written by Parquet-MR, cannot be read again by Parquet-MR Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2631 · 18 comments · Opened Jul 20, 2021
parquet-cli not working in release 1.12.0 Open

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

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/parquet-java#2630 · 2 comments · Opened Jul 15, 2021
Data masking(null) for column encryption Open

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

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/parquet-java#1629 · 2 comments · Opened Jul 1, 2021
Add a new API in `PageReadStore` to return row ranges directly Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 38/100

apache/parquet-java#2627 · Opened Jun 28, 2021
Parquet-tools is affected by multiple CVEs Open

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

Difficulty 4/5 3-5 days Newbie friendliness 32/100

apache/parquet-java#2624 · 1 comment · Opened Jun 9, 2021
Schema mismatch for reading Avro from parquet file with old schema version? Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#1628 · 5 comments · Opened Jun 3, 2021
Pluggable key material store Open

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

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/parquet-java#1627 · Opened May 25, 2021
Deprecate Exceptions Class Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 15/100

apache/parquet-java#2619 · Opened May 14, 2021
Clean Up Code Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 18/100

apache/parquet-java#2617 · Opened May 13, 2021
ConsecutiveChunkList's length field should be long instead of int Open

Component: Parquet Priority: Major Type: bug

Difficulty 3/5 1-2 days Newbie friendliness 30/100

apache/parquet-java#2615 · 1 comment · Opened May 10, 2021
Unwrap common Protobuf wrappers and logical Timestamps, Date, TimeOfDay Open

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

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/parquet-java#1624 · Opened May 3, 2021
Add zstd to `parquet.compression` description of ParquetOutputFormat Javadoc Open

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

Difficulty 1/5 Under an hour Newbie friendliness 68/100

apache/parquet-java#2612 · Opened Apr 29, 2021
AvroReadSupport.setRequestedProjection in 1.11.1+ not backwards compatible with MAPS Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2610 · 2 comments · Opened Apr 28, 2021
implicitly defining DEBUG mode in MessageColumnIO causes 80% performance overhead Open

Component: Parquet Priority: Critical Type: bug

Difficulty 4/5 3-5 days Newbie friendliness 30/100

apache/parquet-java#1622 · 1 comment · Opened Apr 25, 2021
Java module import error due to shaded package shaded.parquet.it.unimi.dsi.fastutil Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2608 · 17 comments · Opened Apr 24, 2021
Make "null decryptor" exception more informative Open

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

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

apache/parquet-java#2607 · Opened Apr 20, 2021
Allow empty row in parquet file Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2602 · 4 comments · Opened Apr 13, 2021
ParquetThriftWriter uses deprecated constructors Open

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

Difficulty 3/5 1-2 days Newbie friendliness 45/100

apache/parquet-java#2596 · Opened Apr 7, 2021
Handle special values of floating point statistics Open

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

Difficulty 4/5 3-5 days Newbie friendliness 35/100

apache/parquet-java#2595 · Opened Apr 7, 2021
Local key wrapping with rotation Open

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

Difficulty 5/5 Over a week Newbie friendliness 20/100

apache/parquet-java#2594 · Opened Apr 4, 2021
Remove java related parts from parquet-format Open

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

Difficulty 5/5 Over a week Newbie friendliness 20/100

apache/parquet-java#1617 · Opened Mar 23, 2021
Column resolution by ID Open

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

Difficulty 5/5 Over a week Newbie friendliness 15/100

apache/parquet-java#2591 · 1 comment · Opened Mar 23, 2021
Decimal Statistics emitted by parquet-cpp are broken Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/parquet-java#1615 · Opened Mar 19, 2021
Parquet 1.9 not forward compatible with Parquet 1.10 Open

Component: Parquet Priority: Major Type: bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/parquet-java#2589 · Opened Mar 18, 2021
build failed on AArch64, Fedora 33 Open

Component: Parquet Priority: Major Type: bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/parquet-java#2587 · 15 comments · Opened Mar 16, 2021
[C++][Parquet] Crash at parquet::TypedColumnWriterImpl<>::WriteBatchSpaced Open

Component: Parquet Priority: Major Type: bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/parquet-java#2586 · 5 comments · Opened Mar 9, 2021
Deep verification of encrypted files Open

Component: CLI Component: Parquet Priority: Major Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

apache/parquet-java#2583 · 2 comments · Opened Feb 28, 2021
Document how a schema can have columns splitted over different files Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 30/100

apache/parquet-java#2581 · 3 comments · Opened Feb 20, 2021
Pool SeekableInputStreams in ParquetFileReader Open

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

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/parquet-java#2578 · Opened Feb 16, 2021
Use net.alchim31.maven:scala-maven-plugin instead of org.scala-tools:maven-scala-plugin Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 25/100

apache/parquet-java#2573 · 2 comments · Opened Feb 9, 2021
LZ4 decoding is not working over hadoop Open

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

Difficulty 4/5 3-5 days Newbie friendliness 30/100

apache/parquet-java#2571 · 3 comments · Opened Feb 5, 2021
ParquetRecordReader support building ParquetFileReader using incoming Footer Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

apache/parquet-java#2564 · Opened Jan 27, 2021
Filtering dictionary data types using dplyr in Arrow package Open

Component: Parquet Priority: Major Type: bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

apache/parquet-java#2562 · Opened Jan 18, 2021
Parquet tools build error in the latest released version `apache-parquet-1.11.1` Open

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

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/parquet-java#2560 · 7 comments · Opened Jan 11, 2021
"parquet-tools cat -j" should not output metadata Open

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

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/parquet-java#2559 · Opened Dec 16, 2020
ParquetThriftOutputFormat does not store any optional primitive values in parquet file Open

Component: Parquet Priority: Major Type: bug

Difficulty 3/5 1-2 days Newbie friendliness 35/100

apache/parquet-java#2558 · Opened Dec 15, 2020
TransCompressionCommand Inoperable Open

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

Difficulty 3/5 1-2 days Newbie friendliness 45/100

apache/parquet-java#2552 · 2 comments · Opened Dec 3, 2020

apache/parquet-java

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