84326501a9
New nullable TEXT column tracks which step of the canonical-date waterfall (kamadak-exif → exiftool → filename → fs_time) populated `date_taken`. Lets a later per-tick drain re-resolve weak sources (`fs_time`) once stronger ones become available, and gives the UI/debug surface a way to answer "why does this photo show up under this date?". Adds the column at all `InsertImageExif` construction sites with `None` placeholders (the resolver wiring lands in a follow-up commit), and extends the `update_exif` SET tuple so the column survives the GPS-write re-read path. Partial index `idx_image_exif_date_backfill` is created for the upcoming drain query. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
25 lines
1.2 KiB
SQL
25 lines
1.2 KiB
SQL
-- Tracks where a row's `date_taken` was sourced so the canonical-date
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-- waterfall (kamadak-exif → exiftool → filename → earliest_fs_time) is
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-- visible to debugging and to the per-tick backfill drain that re-runs
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-- weak sources once stronger ones become available (e.g. exiftool gets
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-- installed on a deploy that didn't have it). See CLAUDE.md → Memories
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-- canonical-date pipeline.
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--
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-- Values:
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-- 'exif' — kamadak-exif read DateTime/DateTimeOriginal directly
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-- 'exiftool' — exiftool fallback caught a video / MakerNote / QuickTime tag
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-- 'filename' — extract_date_from_filename matched a known pattern
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-- 'fs_time' — fell through to earliest_fs_time(metadata)
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--
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-- NULL when `date_taken` itself is NULL (no source resolved the date).
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ALTER TABLE image_exif ADD COLUMN date_taken_source TEXT;
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-- Partial index for the per-tick backfill drain: targets rows that need
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-- re-resolution (no date yet, or only the weakest source resolved it).
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-- Filename-sourced rows are intentionally excluded — the regex is
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-- authoritative when it matches and re-running exiftool wouldn't change
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-- the answer.
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CREATE INDEX idx_image_exif_date_backfill
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ON image_exif (library_id, id)
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WHERE date_taken IS NULL OR date_taken_source = 'fs_time';
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