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Make stats query selective. Add stats index. Add paging to user list.

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Entire-Checkpoint: d42431eee30d
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Jan Eitzinger
2026-03-12 20:16:55 +01:00
parent 4555fb8a86
commit 8e86e8720d
7 changed files with 194 additions and 175 deletions
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1
internal/repository/migrations/sqlite3/12_stats-covering-index.down.sql Normal file
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DROP INDEX IF EXISTS jobs_cluster_user_starttime_stats;

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internal/repository/migrations/sqlite3/12_stats-covering-index.up.sql Normal file
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-- Migration 12: Add covering index for grouped stats queries
-- Column order: cluster (equality), hpc_user (GROUP BY), start_time (range scan)
-- Includes aggregated columns to avoid main table lookups entirely.
DROP INDEX IF EXISTS jobs_cluster_starttime_user_stats;
CREATE INDEX IF NOT EXISTS jobs_cluster_user_starttime_stats
ON job (cluster, hpc_user, start_time, duration, job_state, num_nodes, num_hwthreads, num_acc);
PRAGMA optimize;