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fix(vahter): rebuild trgm index with fastupdate off, mark forensic indexes #502

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Merged
Szer merged 2 commits into from
Sep 17, 2026
Merged

fix(vahter): rebuild trgm index with fastupdate off, mark forensic indexes #502

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5ca18c4
fix(vahter): rebuild idx_event_rawmessage_trgm with fastupdate off
Szer Sep 17, 2026
90b0233
fix(vahter): idx_forensic_ prefix for debug-only indexes
Szer Sep 17, 2026
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8 changes: 8 additions & 0 deletions src/vahter-bot/migrations/V51__rawmessage_trgm_fastupdate_off.sql
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-- idx_forensic_*: debug-session indexes, not read by bot code. GIN ones are built with fastupdate
-- off, since a pending-list flush stalls the inserting webhook request for 10-30s on this tier.
DROP INDEX CONCURRENTLY IF EXISTS idx_event_rawmessage_trgm;
DROP INDEX CONCURRENTLY IF EXISTS idx_forensic_event_rawmessage_trgm;
CREATE INDEX CONCURRENTLY idx_forensic_event_rawmessage_trgm
ON event USING gin ((data->>'rawMessage') gin_trgm_ops)
WITH (fastupdate = off)
WHERE event_type = 'MessageReceived';
8 changes: 8 additions & 0 deletions src/vahter-bot/migrations/V52__mark_forensic_indexes.sql
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Original file line number Diff line number Diff line change
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-- Remaining debug-session indexes (V30, V38, V43, V48) get the idx_forensic_ prefix so the
-- catalog itself shows which indexes no bot query depends on.
ALTER INDEX IF EXISTS idx_event_username_lower RENAME TO idx_forensic_event_username_lower;
ALTER INDEX IF EXISTS idx_event_user_ban_by_stream RENAME TO idx_forensic_event_user_ban_by_stream;
ALTER INDEX IF EXISTS idx_event_mlscored_score_created_at RENAME TO idx_forensic_event_mlscored_score_created_at;
ALTER INDEX IF EXISTS idx_snapshot_user_username RENAME TO idx_forensic_snapshot_user_username;
ALTER INDEX IF EXISTS idx_snapshot_user_banned RENAME TO idx_forensic_snapshot_user_banned;
ALTER INDEX IF EXISTS idx_snapshot_user_spam_protection RENAME TO idx_forensic_snapshot_user_spam_protection;
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