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Which issue does this PR close?

Rationale for this change

A check is recently added to invoke_with_args that checks for the output type of the result with the expected output type from the UDF - #17515. Because the fast path misses adding the timezone, the assertion added in this PR fails.

What changes are included in this PR?

Include timezone information in the fast path.

Are these changes tested?

Yes, added a unit test and SLT test

Are there any user-facing changes?

No

Which issue does this PR close?

  • Closes #.

Rationale for this change

What changes are included in this PR?

Are these changes tested?

Are there any user-facing changes?

## Which issue does this PR close?

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- Closes apache#18597

## Rationale for this change

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in the issue then this section is not needed.
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your changes and offer better suggestions for fixes.
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A check is recently added to `invoke_with_args` that checks for the
output type of the result with the expected output type from the UDF -
apache#17515. Because the fast path
misses adding the timezone, the assertion added in this PR fails.

## What changes are included in this PR?

<!--
There is no need to duplicate the description in the issue here but it
is sometimes worth providing a summary of the individual changes in this
PR.
-->

Include timezone information in the fast path.

## Are these changes tested?

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Yes, added a unit test

## Are there any user-facing changes?

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updated before approving the PR.
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No

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@hareshkh hareshkh changed the title Add timezone to date_trunc fast path (#18596) [branch-51] Add timezone to date_trunc fast path (#18596) Nov 11, 2025
@hareshkh hareshkh changed the title [branch-51] Add timezone to date_trunc fast path (#18596) [branch-51]: Add timezone to date_trunc fast path (#18596) Nov 11, 2025
@comphead
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Thanks @hareshkh
The voting already started #17558 (comment) so it might be late for 51.0.0, but it may go to the 51.1.0 if we have such a hotfix

@hareshkh
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@comphead : Without the fix any date_trunc expressions with "seconds" or lower granularity always panics because of the new assertion to validate datatypes. Even if the debug assertion in datafusion is turned off - an Arrow schema error like the following occurs.

ArrowError(InvalidArgumentError("column types must match schema types, 
expected Timestamp(µs, \"UTC\") but found Timestamp(µs) at column index 0")

Should I then start a ticket for 51.1.0?

@comphead
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@comphead : Without the fix any date_trunc expressions with "seconds" or lower granularity always panics because of the new assertion to validate datatypes. Even if the debug assertion in datafusion is turned off - an Arrow schema error like the following occurs.

ArrowError(InvalidArgumentError("column types must match schema types, 
expected Timestamp(µs, \"UTC\") but found Timestamp(µs) at column index 0")

Should I then start a ticket for 51.1.0?

I mentioned this issue in the release, we can probably have a release hotfix for this issue, lets get 51.0.0 released first

@xudong963 xudong963 merged commit 6dcde50 into apache:branch-51 Nov 12, 2025
28 of 30 checks passed
@hareshkh hareshkh deleted the cp-date-trunc-fix branch November 13, 2025 15:17
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3 participants