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Commits on May 21, 2026

• feat(dataframe): add join, joinOn, and JoinType (#72)

  LantaoJin

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• chore(release): add ASF release scripts for source tarballs (#76)

  andygrove

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Commits on May 20, 2026

• feat(session): register object_store backends on SessionContextBuilder (#73)

  LantaoJin

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  7f49541

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• feat(dataframe): add schema, explain, cache, and describe introspection methods (#71)

  LantaoJin

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  77b5b72

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Commits on May 19, 2026

• feat(datasource): add Java-implemented data sources (#65)

  andygrove

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  89d5496

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• feat(dataframe): add writeJson with JsonWriteOptions (#61)

  LantaoJin

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  2ecf3f1

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• feat(avro): expose Avro reader via registerAvro and readAvro (#60)

  LantaoJin

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Commits on May 18, 2026

• feat(dataframe): add executeStream(allocator) for incremental batch iteration (#51)

  LantaoJin

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  333ce48

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• feat(dataframe): add writeCsv with CsvWriteOptions (#53)

  LantaoJin

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  3d9e19f

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• feat(udf)!: switch ScalarFunction.evaluate to ColumnarValue API (closes #62) (#64)

  andygrove

  authored
  8e6ab54

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• feat(arrow): expose Arrow IPC reader via registerArrow and readArrow (#52)

  LantaoJin

  authored
  1a81099

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• feat: add Java scalar UDF support (#46)

  andygrove

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  dd5d6fc

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Commits on May 17, 2026

• feat(dataframe): expose withColumn and unnestColumns (#54)

  LantaoJin

  authored
  678eee1

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• feat(json): expose NdJsonReadOptions via registerJson and readJson (#47)

  LantaoJin

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  63a86a5

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Commits on May 14, 2026

• feat(builder): expose ConfigOptions.set/get as setOption / setOptions / getOption (#49)

  LantaoJin

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  4a967e4

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Commits on May 13, 2026

• docs: remove project-status checklist (#34)

  andygrove

  authored
  2689011

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• build: add examples module on a multi-module Maven build (#32)

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  andygrove

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• docs: publish Javadoc as part of the User Guide (#31)

  andygrove

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  be10e16

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• feat(dataframe): add limit, distinct, dropColumns, withColumnRenamed (#30)

  andygrove

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  fe54208

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• refactor: pass csv and parquet read options via protobuf (#29)

  andygrove

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  9dacdc8

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• feat: configure SessionContext and RuntimeEnv via builder (#28)

  andygrove

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  3698b9a

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• feat(write): add DataFrame.writeParquet with ParquetWriteOptions (#27)

  andygrove

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  423ff8a

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• ci: publish docs site to datafusion.apache.org/java/ (#26)

  andygrove

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  598ae9e

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• docs: add Sphinx documentation site with user and contributor guides (#24)

  andygrove

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  f61b10f

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• docs: add GitHub issue and PR templates (#23)

  andygrove

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  a651d31

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• feat(csv): expose CsvReadOptions via registerCsv and readCsv (#21)

  LantaoJin

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  50885c6

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• docs: replace roadmap with project-status checklist (#20)

  andygrove

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  ca7ebef

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• feat(proto): execute Java-built protobuf plans via SessionContext (#13)

  andygrove

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  757a078

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• feat(dataframe): add select/filter/count/show methods (#19)

  andygrove

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  717b735

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• feat(parquet): expose ParquetReadOptions via registerParquet and readParquet (#18)

  andygrove

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  233243c

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• ci: replace disallowed third-party actions in build workflow (#16)

  andygrove

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  1da3233

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• ci: add build workflow that runs make test (#15)

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  andygrove

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• feat(proto): generate datafusion-proto Java classes at build time (#9)

  andygrove

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  5292e05

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• chore(.asf.yaml): null out main branch protection to clear stale rules (#11)

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  andygrove

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  e412ab5

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• chore: remove protected_branches block and format workflow (#7)

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  andygrove

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  80eaf81

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