cht42 f3f6dec7c9 feat: Add support for 'isoyear' in date_part function (#19821) ...

## Which issue does this PR close?

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- Closes #19820.

## Rationale for this change

`isoyear` part is available in both PG and Spark EXTRACT functions. 


https://www.postgresql.org/docs/current/functions-datetime.html#:~:text=the%20week%20numbering.-,isoyear,-The%20ISO%208601

https://github.com/apache/spark/blob/a03bedb6c1281c5263a42bfd20608d2ee005ab05/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/datetimeExpressions.scala#L3360

## What changes are included in this PR?

Support for part `isoyear` in date_part function.

## Are these changes tested?
yes in SLT

## Are there any user-facing changes?

yes
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2026-01-16 12:22:58 +00:00

..

_static

docs: Improve config tables' readability (#19522)

2025-12-29 19:13:42 +00:00

_templates

feat(docs): enable navbar (#18324)

2025-10-31 02:14:57 +00:00

contributor-guide

doc: Add an auto-generated dependency graph for internal crates (#19280)

2026-01-14 02:33:41 +00:00

library-user-guide

Docs: Fix some links in docs (#19834)

2026-01-15 22:50:28 +00:00

user-guide

feat: Add support for 'isoyear' in date_part function (#19821)

2026-01-16 12:22:58 +00:00

conf.py

feat(docs): enable navbar (#18324)

2025-10-31 02:14:57 +00:00

download.md

Update release download links on download page (#18550)

2025-11-11 11:32:42 +00:00

index.rst

doc: Add an auto-generated dependency graph for internal crates (#19280)

2026-01-14 02:33:41 +00:00