Add IProjection support in CompositeProjection#4140
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jeremydmiller merged 1 commit intomasterfrom Feb 16, 2026
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Custom IProjection implementations can now be added directly to a composite via the new Add(IProjection, int) overload. This uses a composite-safe wrapper (CompositeIProjectionSource) instead of the standard ProjectionWrapper, which would incorrectly dispose the shared batch through ProjectionExecution's unconditional await using pattern. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This was referenced Feb 17, 2026
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Summary
Add(IProjection, int)overload toCompositeProjectionso customIProjectionimplementations can participate in composite projectionsCompositeIProjectionSource/CompositeIProjectionExecution) instead ofProjectionWrapper, which would incorrectly dispose the shared batch viaProjectionExecution's unconditionalawait usingpatternTest plan
TripMetricsProjection(customIProjection) added to Trip composite test — verifies documents are producedAppointmentMetricsProjection(customIProjection) added to TeleHealth composite test — verifies specialty-grouped counts🤖 Generated with Claude Code