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Add migration to reconcile stale plot_count data #260

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Merged
realproject7 merged 2 commits into from
Mar 17, 2026
Merged

Add migration to reconcile stale plot_count data #260

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ae42e4c
[#259] Add migration to reconcile stale plot_count data
realproject7 Mar 17, 2026
3f8c01b
[#259] Fix NULL-safety: use IS DISTINCT FROM in reconciliation
realproject7 Mar 17, 2026
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16 changes: 16 additions & 0 deletions supabase/migrations/00013_reconcile_plot_counts.sql
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Original file line number Diff line number Diff line change
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-- Reconcile stale storylines.plot_count and last_plot_time from plots table.
-- Idempotent: only updates rows where values differ from computed aggregates.
-- Context: PR #258 fixed the code path; this migration fixes existing stale data.

UPDATE storylines s
SET plot_count = sub.cnt,
last_plot_time = sub.latest
FROM (
SELECT storyline_id,
COUNT(*) AS cnt,
MAX(block_timestamp) AS latest
FROM plots
GROUP BY storyline_id
) sub
WHERE s.storyline_id = sub.storyline_id
AND (s.plot_count IS DISTINCT FROM sub.cnt OR s.last_plot_time IS DISTINCT FROM sub.latest);
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