34 lines
1.3 KiB
SQL
34 lines
1.3 KiB
SQL
-- Copyright (c) 2026 Probo Inc <hello@probo.com>.
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--
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-- Permission to use, copy, modify, and/or distribute this software for any
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-- purpose with or without fee is hereby granted, provided that the above
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-- copyright notice and this permission notice appear in all copies.
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--
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-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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-- REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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-- AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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-- INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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-- LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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-- OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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-- PERFORMANCE OF THIS SOFTWARE.
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ALTER TABLE tasks ADD COLUMN priority INTEGER;
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WITH ranked_tasks AS (
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SELECT
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id,
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ROW_NUMBER() OVER (PARTITION BY organization_id, state ORDER BY created_at DESC, id DESC) AS rn
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FROM tasks
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)
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UPDATE tasks t
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SET priority = rt.rn
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FROM ranked_tasks rt
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WHERE t.id = rt.id;
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ALTER TABLE tasks ALTER COLUMN priority SET NOT NULL;
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ALTER TABLE tasks
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ADD CONSTRAINT tasks_organization_id_state_priority_key
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UNIQUE (organization_id, state, priority)
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DEFERRABLE INITIALLY DEFERRED;
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