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Fix tie-breaker performance

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Shadowghost
2026-07-16 14:20:42 +02:00
parent f8771b52ec
commit d894a98b79
2 changed files with 12 additions and 3 deletions
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Jellyfin.Server.Implementations/Item/BaseItemRepository.TranslateQuery.cs
+6 -1
View File
@@ -557,8 +557,13 @@ public sealed partial class BaseItemRepository
: baseQuery.Where(e => inProgressIds.Contains(e.Id));
// When several versions of the same item are in progress, keep only the most recently played one, use id as tiebreaker.
// Only in-progress siblings can eliminate a candidate: a version without progress has a NULL max LastPlayedDate,
// which is never greater and never ties. Restricting the sibling scan to the in-progress set keeps this bounded by
// the user's Continue Watching count instead of forcing a full BaseItems scan (COALESCE keys are non-indexable) per row.
baseQuery = baseQuery.Where(e => e.Type == seriesTypeName || !context.BaseItems
.Where(s => s.Id != e.Id && (s.PrimaryVersionId ?? s.Id) == (e.PrimaryVersionId ?? e.Id))
.Where(s => s.Id != e.Id
&& inProgressIds.Contains(s.Id)
&& (s.PrimaryVersionId ?? s.Id) == (e.PrimaryVersionId ?? e.Id))
.Any(s =>
inProgress.Where(su => su.ItemId == s.Id).Max(su => su.LastPlayedDate)
> inProgress.Where(eu => eu.ItemId == e.Id).Max(eu => eu.LastPlayedDate)
tests/Jellyfin.Server.Implementations.Tests/Item/AlternateVersionQueryTranslationTests.cs
+6 -2
View File
@@ -60,7 +60,9 @@ public sealed class AlternateVersionQueryTranslationTests : IDisposable
.Where(e => seededIds.Contains(e.Id))
.Where(e => inProgressIds.Contains(e.Id))
.Where(e => !ctx.BaseItems
.Where(s => s.Id != e.Id && (s.PrimaryVersionId ?? s.Id) == (e.PrimaryVersionId ?? e.Id))
.Where(s => s.Id != e.Id
&& inProgressIds.Contains(s.Id)
&& (s.PrimaryVersionId ?? s.Id) == (e.PrimaryVersionId ?? e.Id))
.Any(s =>
inProgress.Where(su => su.ItemId == s.Id).Max(su => su.LastPlayedDate)
> inProgress.Where(eu => eu.ItemId == e.Id).Max(eu => eu.LastPlayedDate)
@@ -110,7 +112,9 @@ public sealed class AlternateVersionQueryTranslationTests : IDisposable
.Where(e => seededIds.Contains(e.Id))
.Where(e => inProgressIds.Contains(e.Id))
.Where(e => !ctx.BaseItems
.Where(s => s.Id != e.Id && (s.PrimaryVersionId ?? s.Id) == (e.PrimaryVersionId ?? e.Id))
.Where(s => s.Id != e.Id
&& inProgressIds.Contains(s.Id)
&& (s.PrimaryVersionId ?? s.Id) == (e.PrimaryVersionId ?? e.Id))
.Any(s =>
inProgress.Where(su => su.ItemId == s.Id).Max(su => su.LastPlayedDate)
> inProgress.Where(eu => eu.ItemId == e.Id).Max(eu => eu.LastPlayedDate)