25 lines
981 B
SQL
25 lines
981 B
SQL
 
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-- `cards.position` was a project-wide sort key. It is now a rank *within a
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-- column* — the group of cards sharing a (project_id, status_id). The inbox
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-- (status_id IS NULL) is its own column. The "all tasks" view no longer uses
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-- position at all (it sorts alphabetically); ordering is a per-column concern
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-- driven by PUT /api/projects/{id}/cards/order.
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DROP INDEX IF EXISTS idx_cards_project_position;
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CREATE INDEX IF NOT EXISTS idx_cards_project_status_position
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ON cards (project_id, status_id, position);
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-- Re-pack every existing column to a dense 0..n-1, preserving current order.
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-- The CTE is evaluated against the pre-update snapshot, so this is safe despite
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-- writing the same table.
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WITH ranked (id, rk) AS (
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SELECT id,
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row_number() OVER (
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PARTITION BY project_id, status_id
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ORDER BY position, id
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) - 1
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FROM cards
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)
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UPDATE cards
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SET position = (SELECT rk FROM ranked WHERE ranked.id = cards.id);
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