mirror of
https://github.com/ClusterCockpit/cc-backend
synced 2026-03-15 12:27:30 +01:00
Jan Eitzinger
dd3e5427f4
Adds composite covering indexes on (cluster, job_state, <group_col>, ...) for user, project, and subcluster groupings to enable index-only scans for status views. Drops subsumed 3-column indexes. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> Entire-Checkpoint: 3d8def28e96e
19 lines
925 B
SQL
19 lines
925 B
SQL
-- Migration 13: Add covering indexes for status/dashboard queries
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-- Column order: cluster (equality), job_state (equality), grouping col, then aggregated columns
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-- These indexes allow the status views to be served entirely from index scans.
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CREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_user_stats
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ON job (cluster, job_state, hpc_user, duration, start_time, num_nodes, num_hwthreads, num_acc);
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CREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_project_stats
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ON job (cluster, job_state, project, duration, start_time, num_nodes, num_hwthreads, num_acc);
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CREATE INDEX IF NOT EXISTS jobs_cluster_jobstate_subcluster_stats
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ON job (cluster, job_state, subcluster, duration, start_time, num_nodes, num_hwthreads, num_acc);
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-- Drop 3-col indexes that are now subsumed by the covering indexes above
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DROP INDEX IF EXISTS jobs_cluster_jobstate_user;
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DROP INDEX IF EXISTS jobs_cluster_jobstate_project;
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PRAGMA optimize;
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