perf(sourcemaps): Flip debug-id EXISTS query to drive from project side#112673
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perf(sourcemaps): Flip debug-id EXISTS query to drive from project side#112673
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The `has_uploaded_some_artifact_with_a_debug_id` query was scanning `sentry_debugidartifactbundle` by `organization_id` (potentially millions of rows for large orgs) then probing `sentry_projectartifactbundle` via correlated EXISTS for each candidate. Flips the query to start from `ProjectArtifactBundle` scoped by `project_id` (much smaller set) and probe `DebugIdArtifactBundle` by the FK index on `artifact_bundle_id`. Same semantics, better plan. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> Made-with: Cursor
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Scope: Backend
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#112627 replaced the double join (DebugIdArtifactBundle -> ArtifactBundle -> ProjectArtifactBundle) with a correlated EXISTS subquery.
This flips the query to start from
ProjectArtifactBundle(scoped byproject_id, much smaller) as the outer table, with the EXISTS probingDebugIdArtifactBundleby the FK index onartifact_bundle_id. Same semantics, but Postgres starts from the small side.