Thinh Lam
22 lines
1.2 KiB
SQL
22 lines
1.2 KiB
SQL
-- ImageHub: link organ-segmentation masks to their parent image file (Phase D).
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-- A mask file (file_kind='segmentation') points at the image it segments via a
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-- self-referential parent_file_id (e.g. an organ mask of ct.nii.gz); organ_label
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-- names the organ. Regular files stay file_kind='image'. Idempotent (ADD COLUMN IF
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-- NOT EXISTS) so the startup runner can apply it to volumes that predate it.
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-- Apply after 017_imagehub_datasets.sql (no semicolons inside comments — the runner
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-- splitter is naive):
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-- docker exec -i initiative-postgres psql -U initiative -d initiatives < be0/migrations/018_imagehub_segmentation_links.sql
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ALTER TABLE imagehub_dataset_files
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ADD COLUMN IF NOT EXISTS file_kind TEXT NOT NULL DEFAULT 'image' CHECK (file_kind IN ('image','segmentation'));
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ALTER TABLE imagehub_dataset_files
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ADD COLUMN IF NOT EXISTS parent_file_id UUID REFERENCES imagehub_dataset_files(id) ON DELETE CASCADE;
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ALTER TABLE imagehub_dataset_files
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ADD COLUMN IF NOT EXISTS organ_label TEXT NOT NULL DEFAULT '';
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-- List all masks of an image efficiently.
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CREATE INDEX IF NOT EXISTS idx_imagehub_dataset_files_parent
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ON imagehub_dataset_files (parent_file_id);
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