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 23h
Merged PRs (30d): 30

Dominant language: Java
License: Apache-2.0
Last GitHub push: Sep 20, 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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578 open issues indexed

[C++] Stream API: Add support for repeated fields Open

Component: Parquet Priority: Major Type: enhancement

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

apache/parquet-java#2393 · 4 comments · Opened Nov 23, 2019
Disable crc checksums by default Open

Component: Parquet Priority: Major Type: enhancement

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

apache/parquet-java#2389 · Opened Nov 17, 2019
Integer Overflow of BinaryStatistics#isSmallerThan() Open

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

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

apache/parquet-java#2386 · 4 comments · Opened Nov 10, 2019
Avro's isElementType() change breaks the reading of some parquet(1.8.1) files Open

Component: Avro Component: Parquet Priority: Critical Type: enhancement

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

apache/parquet-java#2381 · 13 comments · Opened Oct 18, 2019
Parquet Java Serialization is very slow Open

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

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

apache/parquet-java#1569 · 2 comments · Opened Oct 16, 2019
Invalid SchemaException for UUID while using AvroParquetWriter Open

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

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

apache/parquet-java#2380 · 10 comments · Opened Oct 16, 2019
Bump Apache Pig from 0.16.0 to 0.17.0 Open

Component: Parquet Component: Pig Priority: Major Type: enhancement

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

apache/parquet-java#2379 · 1 comment · Opened Oct 15, 2019
parquet-tools merge extremely slow with block-option Open

Component: Parquet Priority: Major Type: bug

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

apache/parquet-java#2374 · 5 comments · Opened Oct 1, 2019
Show string min/max in parquet-cli/tools meta command Open

Component: CLI Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2373 · Opened Sep 30, 2019
travis preparing script for bloom-filter branch failed Open

Component: Parquet Priority: Minor Type: bug

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

apache/parquet-java#2366 · Opened Sep 20, 2019
Schema change results in exception - java.lang.ClassCastException Open

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

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

apache/parquet-java#2365 · 3 comments · Opened Sep 18, 2019
Use airlift non-native implementations for GZIP, LZ0 and LZ4 codecs Open

Component: Parquet Priority: Major Type: enhancement

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

apache/parquet-java#2359 · 1 comment · Opened Aug 28, 2019
Parquet pages for different columns cannot be read in parallel Open

Component: Parquet Priority: Major Type: enhancement

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

apache/parquet-java#2358 · 1 comment · Opened Aug 20, 2019
Negative initial size when writing large values in parquet-mr Open

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

Difficulty 4/5 3-5 days Newbie friendliness 45/100

apache/parquet-java#1563 · 9 comments · Opened Aug 6, 2019
Accept local timestamps annotated with the legacy timestamp types Open

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

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

apache/parquet-java#1562 · Opened Jul 18, 2019
ParquetFileReader.open ignores Hadoop configuration options Open

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

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

apache/parquet-java#2353 · Opened Jul 11, 2019
Schema creation from another schema will not be possible - deprecated Open

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

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

apache/parquet-java#2351 · Opened Jul 10, 2019
Make convert-csv work with the input filename which starts with a period or an numeric Open

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

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

apache/parquet-java#2339 · 1 comment · Opened Jun 13, 2019
Fix parquet-cli's wrong or missing usage examples Open

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

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

apache/parquet-java#2338 · Opened Jun 13, 2019
Parquet proto writer de-nest Protobuf wrapper classes Open

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

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

apache/parquet-java#2336 · 1 comment · Opened Jun 12, 2019
Parquet File is not able to read from Spark and Hive Open

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

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

apache/parquet-java#2335 · Opened Jun 11, 2019
Parquet Writer doesn't support to write list of Groups directly into hadoop Open

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

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

apache/parquet-java#2331 · Opened May 29, 2019
Parquet reader throws error "Reading past RLE/BitPacking stream" for parquet file with null values Open

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

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

apache/parquet-java#1555 · 2 comments · Opened May 15, 2019
Add a docker development image and use it in travis Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2325 · Opened May 14, 2019
ParquetWriter.Builder (and subclasses) instances are hard to reuse Open

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

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

apache/parquet-java#2321 · Opened Apr 12, 2019
[C++] Unable to read parquetjs-created file using low-level parquet-cpp API Open

Component: Parquet Priority: Major Type: bug

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

apache/parquet-java#2320 · 2 comments · Opened Apr 10, 2019
Support xxHash in Bloom filter Open

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

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

apache/parquet-java#2315 · Opened Apr 2, 2019
Option for one block per file in MapReduce output Open

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

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

apache/parquet-java#2312 · 4 comments · Opened Mar 25, 2019
Meta data is lost when writing avro union types to parquet Open

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

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

apache/parquet-java#2311 · 4 comments · Opened Mar 21, 2019
ClassCastException Open

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

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

apache/parquet-java#2307 · 1 comment · Opened Feb 26, 2019
[parquet-cli] dictionary command throw NPE when specified column isn't dictionary encoding Open

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

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

apache/parquet-java#2306 · Opened Feb 20, 2019
Bump Parquet version to 1.10.1 on website Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 1/5 Under an hour Newbie friendliness 35/100

apache/parquet-java#2299 · Opened Feb 4, 2019
Pass the parameters in a configuration object to SchemaConverter Open

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

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

apache/parquet-java#2292 · Opened Jan 25, 2019
Perform encoding before bloom filters write out Open

Component: C++ Component: Java Component: Parquet Priority: Minor Type: task

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

apache/parquet-java#2278 · Opened Jan 21, 2019
ParentValueContainer.getConversionContainer does not handle FIXED schema types properly Open

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

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

apache/parquet-java#2270 · Opened Jan 4, 2019
Parquet benchmarks fail with multiple threads Open

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

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

apache/parquet-java#2267 · 1 comment · Opened Dec 23, 2018
[Java] Arrow read write support Open

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

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

apache/parquet-java#2264 · Opened Dec 15, 2018
Not able to do backwards compatible projection Open

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

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

apache/parquet-java#2255 · Opened Nov 26, 2018
[C++] Data set integrity tool Open

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

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

apache/parquet-java#2251 · 2 comments · Opened Nov 12, 2018
Review FilteringRecordMaterializer.java Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2244 · Opened Oct 18, 2018
ACID support Open

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

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

apache/parquet-java#2233 · 2 comments · Opened Oct 1, 2018
Improve logic when to write column indexes Open

Component: Parquet Priority: Minor Type: enhancement

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

apache/parquet-java#2228 · 2 comments · Opened Sep 7, 2018
Can write but read parquet file with nested arrays Open

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

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

apache/parquet-java#2225 · Opened Aug 31, 2018
parquet-tools SimpleRecord does not display empty fields Open

Component: Parquet Priority: Minor Type: bug

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

apache/parquet-java#2224 · 2 comments · Opened Aug 30, 2018
Sample of usage Parquet-1396 and Parquet-1178 for column level encryption with pluggable key access Open

Component: Java Component: Parquet Priority: Major Type: test

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

apache/parquet-java#2221 · 1 comment · Opened Aug 20, 2018
Add merge blocks command to parquet-tools Open

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

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

apache/parquet-java#2214 · 4 comments · Opened Aug 15, 2018
Data obfuscation layer for encryption Open

Component: Parquet Priority: Major Type: enhancement

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

apache/parquet-java#2211 · Opened Aug 10, 2018
upgrade libraries to work around security issues Open

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

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

apache/parquet-java#2205 · Opened Aug 2, 2018
Add IP address logical type Open

Component: Parquet Priority: Major Type: enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

apache/parquet-java#2203 · 4 comments · Opened Jul 30, 2018
[C++] 1.4.1 library allows creation of parquet file w/NULL values for INT types Open

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

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

apache/parquet-java#2202 · 6 comments · Opened Jul 29, 2018

apache/parquet-java

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