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DefaultFetchSpec should not buffer results in temporary list buffers #31282

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DefaultFetchSpec should not buffer results in temporary list buffers #31282

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sephiroth-j
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Avoid fetching and buffering results in temporary List buffers.

I stumbled across this while analyzing a problem with oracle-r2dbc and thought that using buffer() is unnecessary when you could use singleOrEmpty instead.

Avoid fetching and buffering results in temporary `List` buffers.

Signed-off-by: Ronny Perinke <23166289+sephiroth-j@users.noreply.github.com>
@spring-projects-issues spring-projects-issues added the status: waiting-for-triage An issue we've not yet triaged or decided on label Sep 20, 2023
@sephiroth-j sephiroth-j changed the title use singleOrEmpty() instead of buffer() R2DBC: use singleOrEmpty() instead of buffer(2) for FetchSpec.one() Sep 22, 2023
@snicoll snicoll self-assigned this Sep 26, 2023
@snicoll snicoll added type: bug A general bug and removed status: waiting-for-triage An issue we've not yet triaged or decided on labels Sep 26, 2023
@snicoll snicoll added this to the 6.1.0-RC1 milestone Sep 26, 2023
@snicoll snicoll changed the title R2DBC: use singleOrEmpty() instead of buffer(2) for FetchSpec.one() DefaultFetchSpec should not buffer results in temporary list buffers Sep 26, 2023
snicoll pushed a commit that referenced this pull request Sep 26, 2023
This commit avoids fetching and buffering results in temporary `List` buffers.

See gh-31282
snicoll added a commit that referenced this pull request Sep 26, 2023
@snicoll snicoll closed this in af0b39a Sep 26, 2023
@sephiroth-j sephiroth-j deleted the feature/flux-singleOrEmpty-in-DefaultFetchSpec branch September 26, 2023 20:42
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