Perf: Render scope upstream snapshots - #5917
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Signed-off-by: Andreas Fredhøi <andreas.fredhoi@fresio.no>
Signed-off-by: Andreas Fredhøi <andreas.fredhoi@fresio.no>
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Description
Follow-on from #5913 - solves #5905
Adds an opt-in --use-project-index flag to sqlmesh render.
When enabled, SQLMesh loads only the target model and its upstream dependencies, reducing unnecessary project loading and snapshot creation. It safely falls back to a full load if the project index is missing or stale.
Includes CLI documentation and tests for scoped loading and fallback behavior.
Test Plan
395 model live plan
=== Timing summary ===
sqlmesh --gateway core_dev_new render sap.exposed.project 24.98s ok
sqlmesh --gateway core_dev_new render sap.exposed.person 20.52s ok
sqlmesh --gateway core_dev_new render sap.exposed.calendar 18.99s ok
sqlmesh --gateway core_dev_new render --use-project-index sap.exposed.project 7.13s ok
sqlmesh --gateway core_dev_new render --use-project-index sap.exposed.person 5.91s ok
sqlmesh --gateway core_dev_new render --use-project-index sap.exposed.calendar 6.37s ok
Checklist
make styleand fixed any issuesmake fast-test)git commit -s) per the DCO