58 lines
1.5 KiB
SQL
58 lines
1.5 KiB
SQL
-- +goose Up
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-- Apply legacy OPC staging data into `opcs`.
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-- Expected flow before this migration:
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-- 1) Run previous migration that creates `opc_old_import`.
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-- 2) Import old dump rows into `opc_old_import`.
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-- This migration maps old integer IDs into BINARY(16) UUID-style IDs,
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-- then upserts into `opcs` with `is_active` forced to 1.
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START TRANSACTION;
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INSERT INTO opc_old_id_map (old_id, new_id)
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SELECT
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s.id AS old_id,
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UNHEX(REPLACE(
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LOWER(CONCAT(
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LPAD(HEX(FLOOR(CAST(UNIX_TIMESTAMP(UTC_TIMESTAMP(3)) * 1000 AS UNSIGNED) / 65536)), 8, '0'),
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'-',
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LPAD(HEX(MOD(CAST(UNIX_TIMESTAMP(UTC_TIMESTAMP(3)) * 1000 AS UNSIGNED), 65536)), 4, '0'),
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'-',
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'7', LPAD(HEX(FLOOR(RAND() * 4096)), 3, '0'),
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'-',
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LPAD(HEX(FLOOR(RAND() * 16384) + 32768), 4, '0'),
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'-',
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LPAD(HEX(FLOOR(RAND() * 281474976710656)), 12, '0')
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)),
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'-', ''
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)) AS new_id
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FROM opc_old_import s
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LEFT JOIN opc_old_id_map m ON m.old_id = s.id
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WHERE m.old_id IS NULL;
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INSERT INTO opcs (
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id,
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name,
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is_active,
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created_at,
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updated_at
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)
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SELECT
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m.new_id,
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LEFT(COALESCE(NULLIF(TRIM(s.title), ''), CONCAT('OPC ', s.id)), 64) AS name,
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1 AS is_active,
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UTC_TIMESTAMP() AS created_at,
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UTC_TIMESTAMP() AS updated_at
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FROM opc_old_import s
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JOIN opc_old_id_map m ON m.old_id = s.id
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ON DUPLICATE KEY UPDATE
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name = VALUES(name),
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is_active = 1,
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updated_at = UTC_TIMESTAMP();
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COMMIT;
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-- +goose Down
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-- Data migration is intentionally non-reversible.
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-- Keep imported data and ID mapping as audit trail.
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SELECT 1;
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