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 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

Add option to reuse (Avro) objects when reading Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1397 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[parquet-thrift] improve performance of thrift push-down code Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1401 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Reduce memory pressure when reading footers Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1385 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Pig and Hive cannot read repeated groups written with parquet-protobuf Open

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

apache/parquet-java#1410 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add support for custom metadata Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1414 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Unnecessary getFileStatus() calls on all part-files in ParquetInputFormat.getSplits Open

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

apache/parquet-java#1417 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet OutputFormat should allow controlling the file size Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1387 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Better exception when files are unaccessible Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1422 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-hadoop's client side logs are buffered / do not print until the job completes Open

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

apache/parquet-java#1441 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Investigate automatic not null checks via annotations in place of checkNotNull calls Open

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

apache/parquet-java#1446 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
There is overlap between ValidTypeMap and PrimitiveTypeName in parquet-mr Open

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

apache/parquet-java#1447 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Choose a strategy for semantic versioning of the java artifacts Open

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

apache/parquet-java#1390 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Refactor the Statistics classes to match the specialized pattern used throughout parquet Open

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

apache/parquet-java#1450 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Benchmark the assembly of thrift objects, and possibly create a more efficient ReplayingTProtocol Open

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

apache/parquet-java#1391 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add support for repeated columns in the filter2 API Open

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

apache/parquet-java#1452 · 20 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider adding support for more column types in the filter2 API Open

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

apache/parquet-java#1453 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
FilteringPrimitiveConverter should support dictionaries Open

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

apache/parquet-java#1392 · 15 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Record filtering in the filter2 API could possibly short circuit Open

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

apache/parquet-java#1455 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Many classes in parquet-hadoop belong in parquet-column Open

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

apache/parquet-java#1458 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Take advantage of dictionary pages when performing rowgroup filters in the filter2 API Open

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

apache/parquet-java#1467 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add HyperLogLog / CountMinSketch to parquet statistics Open

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

apache/parquet-java#1469 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider adding checks that validate eq(null) / notEq(null) is not used on a required column in the filter2 API Open

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

apache/parquet-java#1472 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Increment a hadoop counter for bytes filtered / skipped Open

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

apache/parquet-java#1393 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Consider making a specialized / non-generic UserDefinedPredicate Open

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

apache/parquet-java#1474 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
SERDE backed schema for parquet storage in Hive Open

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

apache/parquet-java#1476 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add a check in the merge PR script to verify that the build on travis-ci passes Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1489 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Error in reading a list type data in hive which was generated through pig Open

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

apache/parquet-java#1490 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet Hive should resolve column names in case insensitive manner Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1495 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Remove author tags from source Open

Component: Parquet Priority: Minor Type: task

apache/parquet-java#1498 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add findbugs support, esp for @Nullable / @NonNull annotation Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1503 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Create a jackson integration module for pojo support Open

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

apache/parquet-java#1514 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
mechanism to add extra metadata in the footer Open

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

apache/parquet-java#1398 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Incompatible behavior for ColumnChunk.file_offset between Parquet-mr and Impala Open

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

apache/parquet-java#1516 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
column chunk page write store log message displays incorrect information Open

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

apache/parquet-java#1399 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Hive cannot determine the list of columns automatically based on Parquet serde Open

Component: Parquet Priority: Critical Type: enhancement

apache/parquet-java#1533 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Provide a ByteBuffer based write path Open

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

apache/parquet-java#1535 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-hive (and therefore Hive) depends on ParquetInputSplit constructor Open

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

apache/parquet-java#1545 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Keep field ids in Parquet Schema Open

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

apache/parquet-java#1564 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
stream through files when writing the _metadata file to reduce memory usage Open

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

apache/parquet-java#1571 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add support for protobuf to parquet-cascading Open

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

apache/parquet-java#1575 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-mr project does not cross-publish scala 2.9 or 2.11 artifacts Open

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

apache/parquet-java#1580 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
filter2 API performance regression Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1583 · 17 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
no projection in thrift union types. Open

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

apache/parquet-java#1588 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support empty structs in Thrift Open

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

apache/parquet-java#1589 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
RunLengthBitPackingHybridDecoder: Reading past RLE/BitPacking stream. Open

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

apache/parquet-java#1603 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Provide option to use on-heap buffers for Snappy compression/decompression Open

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

apache/parquet-java#1408 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enhance the way path checking is done in ParquetFileWriter.mergeFooters Open

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

apache/parquet-java#1631 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Use published Thrift plugin/artifact Open

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

apache/parquet-java#1634 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Optimize the parquet RecordReader implementation when: A. filterpredicate is pushed down , B. filterpredicate is pushed down on a flat schema Open

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

apache/parquet-java#1640 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
AvroParquetWriter can't save object who can have link to object of same type Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1642 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/parquet-java

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