apache/parquet-java

View on GitHub

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

Beginner friendly Everything

Open All

580 open issues indexed

Parquet File not readable by Google big query (works with Spark) Open

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

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

apache/parquet-java#2550 · 8 comments · Opened Nov 23, 2020
Add an option to allow auto conversion from empty fields to NULL Open

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

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

apache/parquet-java#2549 · Opened Nov 11, 2020
parquet-tools cat command does not consider logical type Open

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

Difficulty 3/5 1-2 days Newbie friendliness 55/100

apache/parquet-java#2547 · Opened Nov 2, 2020
parquet-tools class-not-found failures are silent and therefore not helpful Open

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

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

apache/parquet-java#2542 · Opened Oct 31, 2020
ColumnIndex should provide number of records skipped Open

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

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

apache/parquet-java#2536 · 17 comments · Opened Oct 17, 2020
Introduce Velocity Template Engine to Parquet Generator Open

Component: Parquet Priority: Major Type: enhancement

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

apache/parquet-java#2534 · Opened Oct 15, 2020
Use StringBuilder instead of StringBuffer Open

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

Difficulty 2/5 1-3 hours Newbie friendliness 55/100

apache/parquet-java#2530 · Opened Oct 8, 2020
Buffer int overflow in CapacityByteArrayOutputStream, SnappyCompressor Open

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

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

apache/parquet-java#2528 · Opened Oct 7, 2020
Avoid Copy of Bytes in Protobuf BinaryWriter Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2527 · 1 comment · Opened Oct 2, 2020
Add hash functionality Open

Component: Parquet Priority: Major Type: task

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

apache/parquet-java#1601 · Opened Sep 24, 2020
ParquetReader.read(InputFile) always causes exception on build Open

Component: Parquet Priority: Major Type: bug

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

apache/parquet-java#2522 · Opened Sep 16, 2020
Add way to disables statistics on a per column basis Open

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

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

apache/parquet-java#2521 · 5 comments · Opened Sep 8, 2020
Use SeekableByteChannel instead of OutputFile/InputFile Classes Open

Component: Parquet Priority: Major Type: enhancement

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

apache/parquet-java#2519 · 1 comment · Opened Aug 27, 2020
Improve Parquet Protobuf Usability Open

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

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

apache/parquet-java#2518 · Opened Aug 27, 2020
Add filter null check for ColumnIndex Open

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

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

apache/parquet-java#2517 · 6 comments · Opened Aug 22, 2020
Run mvn clean in CI Open

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

Difficulty 1/5 1-3 hours Newbie friendliness 25/100

apache/parquet-java#1598 · Opened Aug 20, 2020
Exception thrown by AvroParquetWriter#write causes all subsequent calls to it to fail Open

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

Difficulty 4/5 3-5 days Newbie friendliness 40/100

apache/parquet-java#2509 · 5 comments · Opened Jul 22, 2020
CompressionCodec Provider-aware Compression Codec Lookup for parquet-mr Open

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

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

apache/parquet-java#2508 · Opened Jul 21, 2020
[parquet-protobuf] Pass descriptor to ProtoWriteSupport constructor Open

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

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

apache/parquet-java#2507 · Opened Jul 20, 2020
Convert JSON to Parquet directly Open

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

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

apache/parquet-java#2503 · 1 comment · Opened Jun 23, 2020
Port ZSTD-JNI support to 1.10.x brach Open

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

Difficulty 4/5 3-5 days Newbie friendliness 20/100

apache/parquet-java#1595 · 1 comment · Opened Jun 15, 2020
Add bloom filter support Open

Component: Parquet Priority: Major Type: task

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

apache/parquet-java#2501 · Opened Jun 12, 2020
ProtoReader does not iterate over the parquet file correctly. Open

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

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

apache/parquet-java#2497 · Opened Jun 6, 2020
Builder Support for ProtoParquetWriter Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 42/100

apache/parquet-java#1592 · 1 comment · Opened May 8, 2020
[Python] [Rust] Parquet read file fails with batch size 1_000_000 and 41 row groups Open

Component: Parquet Priority: Major Type: bug

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

apache/parquet-java#2491 · 4 comments · Opened May 5, 2020
Array Index OutOf Bounds Exception when fall Back Dictionary Encoded Data Open

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

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

apache/parquet-java#2488 · 2 comments · Opened Apr 29, 2020
Add index support in the write path Open

Component: Parquet Priority: Major Type: task

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

apache/parquet-java#2485 · Opened Apr 23, 2020
Add Index support in the read path Open

Component: Parquet Priority: Major Type: task

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

apache/parquet-java#2484 · Opened Apr 23, 2020
Filter out github notification from dev mail list Open

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

Difficulty 4/5 3-5 days Newbie friendliness 20/100

apache/parquet-java#2483 · Opened Apr 21, 2020
InternalParquetRecordWriter - Too much memory used Open

Component: Parquet Priority: Major Type: test

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

apache/parquet-java#2478 · Opened Apr 2, 2020
Vectorized API to support Column Index in Apache Spark Open

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

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

apache/parquet-java#2476 · 10 comments · Opened Mar 26, 2020
Add intersection API to BloomFilter interface Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2470 · 1 comment · Opened Mar 15, 2020
Add union API to BloomFilter interface Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 4/5 3-5 days Newbie friendliness 20/100

apache/parquet-java#2469 · 7 comments · Opened Mar 13, 2020
Use airlift codecs for zstd Open

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

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

apache/parquet-java#2468 · Opened Mar 6, 2020
Add new APIs for nested predicate pushdown Open

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

Difficulty 4/5 3-5 days Newbie friendliness 42/100

apache/parquet-java#2467 · 5 comments · Opened Mar 3, 2020
Provide pluggable APIs to support user customized compression codec Open

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

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

apache/parquet-java#2463 · 1 comment · Opened Feb 25, 2020
Add 'prune' command to parquet-cli Open

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

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

apache/parquet-java#1585 · 2 comments · Opened Feb 17, 2020
Add 'mask' command to parquet-tools/parquet-cli Open

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

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

apache/parquet-java#2455 · 8 comments · Opened Feb 10, 2020
Expected distinct numbers is not parsed correctly Open

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

Difficulty 1/5 Under an hour Newbie friendliness 25/100

apache/parquet-java#2451 · 2 comments · Opened Feb 5, 2020
Add Java NIO Avro OutputFile InputFile Open

Component: Avro Component: Parquet Priority: Minor Type: enhancement

Difficulty 3/5 1-2 days Newbie friendliness 20/100

apache/parquet-java#2447 · 1 comment · Opened Jan 24, 2020
Support configurable for DirectByteBufferAllocator from Hadoop Configuration Open

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

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

apache/parquet-java#2443 · Opened Jan 16, 2020
InternalParquetRecordWriter doesn't immediately limit current row group to threshold Open

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

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

apache/parquet-java#2441 · Opened Jan 14, 2020
Move BitPackingPerfTest to parquet-benchmarks Module Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2437 · Opened Jan 12, 2020
Use SLF4J Logger for TestStatistics Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 20/100

apache/parquet-java#2435 · Opened Jan 12, 2020
InternalParquetRecordReader Logging is Too Verbose Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 15/100

apache/parquet-java#2433 · 4 comments · Opened Jan 12, 2020
Upgrade Apache POM Parent Version to 22 Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 1/5 Under an hour Newbie friendliness 25/100

apache/parquet-java#2432 · Opened Jan 11, 2020
Remove slf4j-simple From parquet-benchmarks Module Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2430 · Opened Jan 10, 2020
Include SLF4J Logger For parquet-format-structures Tests Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 20/100

apache/parquet-java#2429 · Opened Jan 10, 2020
Ensure Parquet Version slf4j Libraries Are Included In parquet-thrift Module Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2428 · Opened Jan 10, 2020
Remove slf4j-log4j12 Binding from parquet-protobuf Module Open

Component: Parquet Priority: Minor Type: enhancement

Difficulty 2/5 1-3 hours Newbie friendliness 20/100

apache/parquet-java#2427 · Opened Jan 10, 2020

apache/parquet-java

Get new issues in your inbox