14 lines
713 B
SQL
14 lines
713 B
SQL
-- Migration: Add stranger_id column for unmatched face traces
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-- Unmatched traces get stranger_id = trace_id (per-file sequential integer)
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-- Unique constraint: (file_uuid, stranger_id) WHERE stranger_id IS NOT NULL
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-- Date: 2026-05-16
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-- Usage: psql -U accusys -d momentry -f migrate_add_stranger_id.sql
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ALTER TABLE face_detections ADD COLUMN IF NOT EXISTS stranger_id INTEGER;
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CREATE UNIQUE INDEX IF NOT EXISTS idx_face_detections_stranger
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ON face_detections (file_uuid, stranger_id) WHERE stranger_id IS NOT NULL;
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-- Assign stranger_id = trace_id for existing unmatched traces
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UPDATE face_detections SET stranger_id = trace_id
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WHERE trace_id IS NOT NULL AND identity_id IS NULL AND stranger_id IS NULL;
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