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Fix broken links in the documentation #19964

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4501ff1
doc: fix some more doc links
alamb Jan 24, 2026
cef5660
more fixes
alamb Jan 24, 2026
5305490
fix
alamb Jan 24, 2026
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2 changes: 1 addition & 1 deletion docs/source/contributor-guide/howtos.md
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Expand Up @@ -187,4 +187,4 @@ valid installation of [protoc] (see [installation instructions] for details).
```

[protoc]: https://github.com/protocolbuffers/protobuf#protocol-compiler-installation
[installation instructions]: https://datafusion.apache.org/contributor-guide/getting_started.html#protoc-installation
[installation instructions]: https://datafusion.apache.org/contributor-guide/development_environment.html#protoc-installation
2 changes: 1 addition & 1 deletion docs/source/library-user-guide/extending-sql.md
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Expand Up @@ -334,7 +334,7 @@ SELECT * FROM sales
[`executionplan`]: https://docs.rs/datafusion/latest/datafusion/physical_plan/trait.ExecutionPlan.html
[`sessioncontext`]: https://docs.rs/datafusion/latest/datafusion/execution/context/struct.SessionContext.html
[`sessionstatebuilder`]: https://docs.rs/datafusion/latest/datafusion/execution/session_state/struct.SessionStateBuilder.html
[`relationplannercontext`]: https://docs.rs/datafusion/latest/datafusion/sql/planner/trait.RelationPlannerContext.html
[`relationplannercontext`]: https://docs.rs/datafusion/latest/datafusion/logical_expr/planner/trait.RelationPlannerContext.html
[exprplanner api documentation]: https://docs.rs/datafusion/latest/datafusion/logical_expr/planner/trait.ExprPlanner.html
[typeplanner api documentation]: https://docs.rs/datafusion/latest/datafusion/logical_expr/planner/trait.TypePlanner.html
[relationplanner api documentation]: https://docs.rs/datafusion/latest/datafusion/logical_expr/planner/trait.RelationPlanner.html
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1 change: 0 additions & 1 deletion docs/source/library-user-guide/functions/adding-udfs.md
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Expand Up @@ -583,7 +583,6 @@ For async UDF implementation details, see [`async_udf.rs`](https://github.com/ap

[`scalarudf`]: https://docs.rs/datafusion/latest/datafusion/logical_expr/struct.ScalarUDF.html
[`create_udf`]: https://docs.rs/datafusion/latest/datafusion/logical_expr/fn.create_udf.html
[`process_scalar_func_inputs`]: https://docs.rs/datafusion/latest/datafusion/physical_expr/functions/fn.process_scalar_func_inputs.html
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@alamb alamb Jan 24, 2026

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this is not linked anywhere in the text that I could find

[`advanced_udf.rs`]: https://github.com/apache/datafusion/blob/main/datafusion-examples/examples/udf/advanced_udf.rs

## Named Arguments
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6 changes: 3 additions & 3 deletions docs/source/library-user-guide/table-constraints.md
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Expand Up @@ -37,6 +37,6 @@ They are provided for informational purposes and can be used by custom
- **Foreign keys and check constraints**: These constraints are parsed
but are not validated or used during query planning.

[`tableconstraint`]: https://docs.rs/datafusion/latest/datafusion/sql/planner/enum.TableConstraint.html
[`constraints`]: https://docs.rs/datafusion/latest/datafusion/common/functional_dependencies/struct.Constraints.html
[`field`]: https://docs.rs/arrow/latest/arrow/datatype/struct.Field.html
[`tableconstraint`]: https://docs.rs/datafusion/latest/datafusion/logical_expr/sqlparser/ast/enum.TableConstraint.html
[`constraints`]: https://docs.rs/datafusion/latest/datafusion/common/struct.Constraints.html
[`field`]: https://docs.rs/arrow/latest/arrow/datatypes/struct.Field.html
8 changes: 4 additions & 4 deletions docs/source/user-guide/arrow-introduction.md
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Expand Up @@ -226,8 +226,8 @@ When working with Arrow and RecordBatches, watch out for these common issues:
[`field`]: https://docs.rs/arrow-schema/latest/arrow_schema/struct.Field.html
[`schema`]: https://docs.rs/arrow-schema/latest/arrow_schema/struct.Schema.html
[`datatype`]: https://docs.rs/arrow-schema/latest/arrow_schema/enum.DataType.html
[`int32array`]: https://docs.rs/arrow-array/latest/arrow_array/array/struct.Int32Array.html
[`stringarray`]: https://docs.rs/arrow-array/latest/arrow_array/array/struct.StringArray.html
[`int32array`]: https://docs.rs/arrow/latest/arrow/array/type.Int32Array.html
[`stringarray`]: https://docs.rs/arrow/latest/arrow/array/type.StringArray.html
[`int32`]: https://docs.rs/arrow-schema/latest/arrow_schema/enum.DataType.html#variant.Int32
[`int64`]: https://docs.rs/arrow-schema/latest/arrow_schema/enum.DataType.html#variant.Int64
[extension points]: ../library-user-guide/extensions.md
Expand All @@ -241,8 +241,8 @@ When working with Arrow and RecordBatches, watch out for these common issues:
[`.show()`]: https://docs.rs/datafusion/latest/datafusion/dataframe/struct.DataFrame.html#method.show
[`memtable`]: https://docs.rs/datafusion/latest/datafusion/datasource/struct.MemTable.html
[`sessioncontext`]: https://docs.rs/datafusion/latest/datafusion/execution/context/struct.SessionContext.html
[`csvreadoptions`]: https://docs.rs/datafusion/latest/datafusion/execution/options/struct.CsvReadOptions.html
[`parquetreadoptions`]: https://docs.rs/datafusion/latest/datafusion/execution/options/struct.ParquetReadOptions.html
[`csvreadoptions`]: https://docs.rs/datafusion/latest/datafusion/datasource/file_format/options/struct.CsvReadOptions.html
[`parquetreadoptions`]: https://docs.rs/datafusion/latest/datafusion/datasource/file_format/options/struct.ParquetReadOptions.html
[`recordbatch`]: https://docs.rs/arrow-array/latest/arrow_array/struct.RecordBatch.html
[`read_csv`]: https://docs.rs/datafusion/latest/datafusion/execution/context/struct.SessionContext.html#method.read_csv
[`read_parquet`]: https://docs.rs/datafusion/latest/datafusion/execution/context/struct.SessionContext.html#method.read_parquet
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8 changes: 3 additions & 5 deletions docs/source/user-guide/concepts-readings-events.md
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Expand Up @@ -21,7 +21,7 @@

## 🧭 Background Concepts

- **2024-06-13**: [2024 ACM SIGMOD International Conference on Management of Data: Apache Arrow DataFusion: A Fast, Embeddable, Modular Analytic Query Engine](https://dl.acm.org/doi/10.1145/3626246.3653368) - [Download](http://andrew.nerdnetworks.org/other/SIGMOD-2024-lamb.pdf), [Talk](https://youtu.be/-DpKcPfnNms), [Slides](https://docs.google.com/presentation/d/1gqcxSNLGVwaqN0_yJtCbNm19-w5pqPuktII5_EDA6_k/edit#slide=id.p), [Recording ](https://youtu.be/-DpKcPfnNms)
- **2024-06-13**: [2024 ACM SIGMOD International Conference on Management of Data: Apache Arrow DataFusion: A Fast, Embeddable, Modular Analytic Query Engine](https://dl.acm.org/doi/10.1145/3626246.3653368) - [Download](https://andrew.nerdnetworks.org/pdf/SIGMOD-2024-lamb.pdf), [Talk](https://youtu.be/-DpKcPfnNms), [Slides](https://docs.google.com/presentation/d/1gqcxSNLGVwaqN0_yJtCbNm19-w5pqPuktII5_EDA6_k/edit#slide=id.p), [Recording ](https://youtu.be/-DpKcPfnNms)

- **2024-06-07**: [Video: SIGMOD 2024 Practice: Apache Arrow DataFusion A Fast, Embeddable, Modular Analytic Query Engine](https://www.youtube.com/watch?v=-DpKcPfnNms&t=5s) - [Slides](https://docs.google.com/presentation/d/1gqcxSNLGVwaqN0_yJtCbNm19-w5pqPuktII5_EDA6_k/edit#slide=id.p)

Expand Down Expand Up @@ -87,16 +87,14 @@ This is a list of DataFusion related blog posts, articles, and other resources.

- **2024-10-29** [Video: MiDAS Seminar Fall 2024 on "Apache DataFusion" by Andrew Lamb](https://www.youtube.com/watch?v=CpnxuBwHbUc)

- **2024-10-27** [Blog: Caching in DataFusion: Don't read twice](https://blog.haoxp.xyz/posts/caching-datafusion)
- **2024-10-27** [Blog: Caching in DataFusion: Don't read twice](https://blog.xiangpeng.systems/posts/caching-datafusion/)
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@alamb alamb Jan 24, 2026

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@XiangpengHao 's blog has moved


- **2024-10-24** [Blog: Parquet pruning in DataFusion: Read no more than you need](https://blog.haoxp.xyz/posts/parquet-to-arrow/)
- **2024-10-24** [Blog: Parquet pruning in DataFusion: Read no more than you need](https://blog.xiangpeng.systems/posts/parquet-to-arrow/)

- **2024-09-13** [Blog: Using StringView / German Style Strings to make Queries Faster: Part 2 - String Operations](https://www.influxdata.com/blog/faster-queries-with-stringview-part-two-influxdb/) | [Reposted on DataFusion Blog](https://datafusion.apache.org/blog/2024/09/13/string-view-german-style-strings-part-2/)

- **2024-09-13** [Blog: Using StringView / German Style Strings to Make Queries Faster: Part 1- Reading Parquet](https://www.influxdata.com/blog/faster-queries-with-stringview-part-one-influxdb/) | [Reposted on Datafusion Blog](https://datafusion.apache.org/blog/2024/09/13/string-view-german-style-strings-part-1/)

- **2024-10-16** [Blog: Candle Image Segmentation](https://www.letsql.com/posts/candle-image-segmentation/)

- **2024-09-23 → 2024-12-02** [Talks: Carnegie Mellon University: Database Building Blocks Seminar Series - Fall 2024](https://db.cs.cmu.edu/seminar2024/)

- **2024-11-12** [Video: Building InfluxDB 3.0 with the FDAP Stack: Apache Flight, DataFusion, Arrow and Parquet (Paul Dix)](https://www.youtube.com/watch?v=AGS4GNGDK_4)
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2 changes: 1 addition & 1 deletion docs/source/user-guide/example-usage.md
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Expand Up @@ -103,7 +103,7 @@ exported by DataFusion, for example:
use datafusion::arrow::datatypes::Schema;
```

For example, [DataFusion `25.0.0` dependencies] require `arrow`
For example, [DataFusion `26.0.0` dependencies] require `arrow`
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@alamb alamb Jan 24, 2026

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You can see a few lines lower the actual version is 26

[datafusion `26.0.0` dependencies]: https://crates.io/crates/datafusion/26.0.0/dependencies

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@martin-g martin-g Jan 24, 2026

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https://crates.io/crates/datafusion/26.0.0/dependencies uses arrow 40.0.0, not 39.0.0

`39.0.0`. If instead you used `arrow` `40.0.0` in your project you may
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@martin-g martin-g Jan 24, 2026

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Suggested change
`39.0.0`. If instead you used `arrow` `40.0.0` in your project you may
`40.0.0`. If instead you used `arrow` `41.0.0` in your project you may

see errors such as:

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