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The following commit(s) were added to refs/heads/main by this push:
     new 2ad89550b6 Add  section to howtos.md (#14171)
2ad89550b6 is described below

commit 2ad89550b60442cac8d9fc15c5753f1afc6ba5ab
Author: Jack Park <[email protected]>
AuthorDate: Sun Jan 19 06:41:09 2025 -0800

    Add  section to howtos.md (#14171)
---
 docs/source/contributor-guide/howtos.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/docs/source/contributor-guide/howtos.md 
b/docs/source/contributor-guide/howtos.md
index e303c2a0f0..e406804caa 100644
--- a/docs/source/contributor-guide/howtos.md
+++ b/docs/source/contributor-guide/howtos.md
@@ -146,3 +146,15 @@ 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
+
+## How to add/edit documentation for UDFs
+
+Documentations for the UDF documentations are generated from code (related 
[github issue]). To generate markdown run `./update_function_docs.sh`.
+
+This is necessary after adding new UDF implementation or modifying existing 
implementation which requires to update documentation.
+
+```bash
+./dev/update_function_docs.sh
+```
+
+[github issue]: https://github.com/apache/datafusion/issues/12740


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