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

ParquetMetadataConverter.java is too long Open

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

apache/parquet-java#1835 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add PARQUET_1_0 and non-repeated data performance tests to parquet-benchmarks Open

Component: Java Component: Parquet Priority: Minor Type: test

apache/parquet-java#1839 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetReader not using FileSystem cache effectively? Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1847 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[Vectorized Reader] Add attributes in ColumnVector and RowBatch Open

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

apache/parquet-java#1852 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Limit the number of rows per block and per split Open

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

apache/parquet-java#1861 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Thrift projection does not handle new (optional) fields in requestedSchema Open

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

apache/parquet-java#1864 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Backwards compat check should enforce enums are not renamed Open

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

apache/parquet-java#1868 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Question on parquet-protobuf and parquet-pig Open

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

apache/parquet-java#1870 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Class Summary does not provide a getter to return inputSchema Open

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

apache/parquet-java#1881 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add a flag to allow empty structs in the thrift schema compat checker Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#1882 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Support dictionaries in parquet-thrift Open

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

apache/parquet-java#1884 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Nested records are not properly read if none of their fields are requested Open

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

apache/parquet-java#1885 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetOutputCommitter should propagate errors when writing metadata files Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#1895 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ProtoRecordConverter might wrongly cast a Message.Builder to Message Open

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

apache/parquet-java#1899 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
GroupType.union(Type toMerge, boolean strict) does not honor strict parameter Open

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

apache/parquet-java#1901 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Testing JIRA ticket for testing committership Open

Component: Parquet Priority: Minor Type: test

apache/parquet-java#1908 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
website should list mailing list adresses Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#1909 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Deprecate Log and move to SLF4J Logger Open

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

apache/parquet-java#1460 · 8 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Counter Initialization causes NPE Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1915 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
InternalParquetRecordWriter doesn't use min/max row counts Open

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

apache/parquet-java#1461 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Binary tests check conditions not part of the API contract Open

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

apache/parquet-java#1919 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Provide example to write/save your own object (without thrift, avro, protoc) Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1922 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Vectorized Read Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1463 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Fix the bug when predicate contains columns not specified in prejection, to prevent filtering out data improperly Open

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

apache/parquet-java#1926 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Throw Exception when predicate contains columns not specified in prejection, to prevent filtering out data improperly Open

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

apache/parquet-java#1927 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Push predicates into the whole read path Open

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

apache/parquet-java#1464 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enables predicates collecting their referred columns Open

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

apache/parquet-java#1928 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet-Avro does not support field removal Open

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

apache/parquet-java#1932 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Integrate asan into pre commit hook Open

Component: Parquet Priority: Major Type: task

apache/parquet-java#1936 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add Brotli compression to Parquet Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1940 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Make writeAllFields more efficient in proto-parquet component Open

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

apache/parquet-java#1944 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Recursive Thrift Data Structure Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1951 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Enums are incorrectly handled by parquet-avro when using GenericRecords Open

Component: Parquet Priority: Minor Type: bug

apache/parquet-java#1952 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Write parquet to STDOUT Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1955 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Boolean format in Plain Decoder Open

Component: Parquet Priority: Trivial Type: enhancement

apache/parquet-java#1957 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Different RLE Encoding Specification Open

Component: Parquet Priority: Trivial Type: enhancement

apache/parquet-java#1958 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
mandatory status of avro columns ignored Open

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

apache/parquet-java#1959 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet silently discards decimal values if they do not fit in declared type Open

Component: Parquet Priority: Major Type: bug

apache/parquet-java#1960 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Not able to store int or boolean from Pig to Parquet Open

Component: Parquet Component: Pig Priority: Trivial Type: bug

apache/parquet-java#1965 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet file in invalid state while writing to S3 from EMR Open

Component: Parquet Priority: Blocker Type: bug

apache/parquet-java#1971 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
parquet depends on hadoop-lzo, which requires Twitter's Maven repo Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1977 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Quoted identifiers in column names Open

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

apache/parquet-java#1987 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Allow for custom compression codecs Open

Component: Parquet Priority: Minor Type: enhancement

apache/parquet-java#1988 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Configure the encoding used by ValueWriters Open

Component: Parquet Priority: Major Type: enhancement

apache/parquet-java#1989 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ProtoMessageConverter fails for unknown proto fields Open

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

apache/parquet-java#1993 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
clean up abandoned PRs Open

Component: Parquet Priority: Major Type: task

apache/parquet-java#1470 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Website is very out of date Open

Component: Parquet Priority: Major Type: task

apache/parquet-java#1996 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Parquet tools cat/head parity, small fixes Open

Component: Parquet Priority: Trivial Type: bug

apache/parquet-java#2003 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Deprecate the "strict" argument in MessageType.union() Open

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

apache/parquet-java#2006 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
ParquetOutputFormat should support custom OutputCommitter Open

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

apache/parquet-java#2016 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026

apache/parquet-java

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