mirror of
https://github.com/ClusterCockpit/cc-backend
synced 2026-03-24 08:37:30 +01:00
Jan Eitzinger
a7a96333ad
Entire-Session: c31c699a-f492-48f7-bcf0-35d3ceeac243 Entire-Strategy: manual-commit Entire-Agent: Claude Code Ephemeral-branch: entire/eba3995-e3b0c4
17 lines
558 B
Markdown
17 lines
558 B
Markdown
# Session Context
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## User Prompts
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### Prompt 1
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Implement the following plan:
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# Optimize Job Table Indexes for 20M Row Production Database
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## Context
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The `job` table has **79 indexes** (created in migrations 08/09), causing:
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1. **Wrong index selection** — without `ANALYZE` statistics, SQLite picks wrong indexes (e.g., `jobs_jobstate_energy` instead of `jobs_starttime` for ORDER BY queries), causing full-table temp B-tree sorts on 20M rows → timeouts
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2. **Excessive disk/memory overhead** — each index costs ~200-400MB at 20M rows; 79 inde...
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