35 lines
1.1 KiB
PL/PgSQL
35 lines
1.1 KiB
PL/PgSQL
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-- Fix items that were created with next_due_at ~= created_at
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-- Run this after a backup. Edit the two variables below to widen/narrow the search.
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-- CONFIG: adjust as needed
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\set LOOKBACK_DAYS 365
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\set WINDOW_SECONDS 10
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BEGIN;
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-- Preview rows to be changed
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SELECT id, item_key, course_id, stage, next_due_at, created_at
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FROM community.vocab_srs_item
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WHERE created_at >= now() - make_interval(days => :LOOKBACK_DAYS)
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AND (
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next_due_at = created_at
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OR abs(EXTRACT(EPOCH FROM (next_due_at - created_at))) <= :WINDOW_SECONDS
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)
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ORDER BY created_at ASC
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LIMIT 200;
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-- Conservative update: set next_due_at to next calendar day at 08:00
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UPDATE community.vocab_srs_item
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SET next_due_at = date_trunc('day', created_at + interval '1 day') + interval '8 hours'
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WHERE created_at >= now() - make_interval(days => :LOOKBACK_DAYS)
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AND (
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next_due_at = created_at
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OR abs(EXTRACT(EPOCH FROM (next_due_at - created_at))) <= :WINDOW_SECONDS
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)
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RETURNING id, item_key, course_id, stage, next_due_at, created_at;
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COMMIT;
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-- After running, re-run `node backend/scripts/diag-srs-stats.js` to validate counts.
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