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Optimize vector get last written LSN (#10360)

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## Problem

See https://github.com/neondatabase/neon/issues/10281

pg17 performs extra lock/unlock operation when fetching LwLSN.

## Summary of changes

Perform all lookups under one lock, moving initialization of not found
keys to separate loop.

Related Postgres PR:
https://github.com/neondatabase/postgres/pull/553

---------

Co-authored-by: Konstantin Knizhnik <knizhnik@neon.tech>
This commit is contained in:
Konstantin Knizhnik
2025-01-14 07:54:30 +02:00
committed by GitHub
parent 430b556b34
commit a039f8381f
2 changed files with 2 additions and 2 deletions
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2
vendor/postgres-v17 vendored

Submodule vendor/postgres-v17 updated: 9c9e9a78a9...0f8da73ed0

2
vendor/revisions.json vendored
View File

@@ -1,7 +1,7 @@
{
"v17": [
"17.2",
"9c9e9a78a93aebec2f6a2f54644442d35ffa245c"
"0f8da73ed08d4fc4ee58cccea008c75bfb20baa8"
],
"v16": [
"16.6",