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

Failed to read write avro data, when it has no fields Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1648 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Vectorized Reader In Parquet Open

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

apache/parquet-java#1657 · 24 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add support for Pig datetimes Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#1661 · 15 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Clean up parquet-cascading dependencies Open

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

apache/parquet-java#1690 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet to report number of rows affected in the row group when corrupted bytes occur Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1696 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
provide an option to skip entire row group in case corrupted bytes occur Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1699 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
provide an option to skip a page in case corrupted bytes occur Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1700 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Hive Avro to Parquet table conversion Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1415 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Document recommendations for block size and page size given an expected number of writers Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1709 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Thrift binary fields are not serialized correctly Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1416 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
BytesWritable is not in parquet 's writePrimitive method in DataWritableWriter class Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1715 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Validate parquet row group size and HDFS block size Open

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

apache/parquet-java#1717 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Snappy Compression: Optimize DirectBuffer handling/release Open

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

apache/parquet-java#1718 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
update parquet-thrift to use elephant-bird and elephant-bird-pig to 4.5 Open

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

apache/parquet-java#1720 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
AvroReadSupport does not support Avro schema resolution Open

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

apache/parquet-java#1721 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet fails to parse schema contains '\r' Open

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

apache/parquet-java#1726 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Retire _metadata generation Open

Component: Parquet Priority: Major Type: task

apache/parquet-java#1728 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
FilteredRecordReader skips rows it shouldn't for schema with optional columns Open

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

apache/parquet-java#1730 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Special case empty columns to store 0 pages and no column chunks in the footer Open

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

apache/parquet-java#1731 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Provide callback to allow user defined key-value metadata merging strategy Open

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

apache/parquet-java#1740 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-pig should not throw an exception reading a timestamp from impala file Open

Component: Parquet Priority: Blocker Type: bug

apache/parquet-java#1741 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet-cascading Add Parquet Avro Scheme Open

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

apache/parquet-java#1743 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetInputSplit end calculation bug Open

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

apache/parquet-java#1750 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enhance ParquetWriter with exposing in-memory size of writer object Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1425 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Log the projected schema Open

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

apache/parquet-java#1754 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Decrease the default page size to 64k Open

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

apache/parquet-java#1757 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Macro based Scala APIs for Predicate and Projection push down Open

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

apache/parquet-java#1759 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add measurement of compression/decompression time Open

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

apache/parquet-java#1760 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
For array type, inconsistent names are used as the array element name. Open

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

apache/parquet-java#1762 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Implement writing Parquet files into Cassandra natively Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#1764 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Introduce an interface for controlling the encoding per column Open

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

apache/parquet-java#1766 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-hive build fails on debian and OSX yosemite Open

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

apache/parquet-java#1771 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Update README with how to contribute Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1772 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Deprecate ConversionPatterns Open

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

apache/parquet-java#1790 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Classes fail to load when not packaged with Parquet. Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1794 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
It should not be possible to project away columns of a key in a map in parquet-thrift Open

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

apache/parquet-java#1806 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Statistic and Filter need a mechanism to get customized comparator from high layer user Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1810 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
OutOfMemoryError in job commit / ParquetMetadataConverter Open

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

apache/parquet-java#1436 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add dictionary support to Avro converters Open

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

apache/parquet-java#1816 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Difference between parquet-mr implementation and parquet-format documentation Open

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

apache/parquet-java#1819 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
NPE in ParquetInputFormat.getSplits when no .parquet files exist Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1821 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Filter predicate should be able to filter on columns not specified in projection pushdown Open

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

apache/parquet-java#1438 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Vectorized Reader] Support Complex Types (Map, Array, Struct) in Parquet Vectorized Reader Open

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

apache/parquet-java#1824 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Vectorized Reader] ColumnVector length should be in terms of rows, not DataPages Open

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

apache/parquet-java#1439 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Vectorized Reader] Make sure all encodings work in Parquet Vectorized Reader Open

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

apache/parquet-java#1825 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Vectorized Reader] Lazy Load in Vectorized Reader Open

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

apache/parquet-java#1826 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Vectorized Reader] Lazy Decoding in Vectorized Reader Open

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

apache/parquet-java#1827 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Vectorized Reader] Add Testcases/Benchmarks for ParquetVectorizedReader Open

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

apache/parquet-java#1828 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add an option for making requested schema case insensitive while reading Open

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

apache/parquet-java#1829 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet Thrift/Scrooge uses file schema as requested schema when projection is not specified Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1832 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/parquet-java

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