33 lines
1.1 KiB
SQL
33 lines
1.1 KiB
SQL
DROP TEMPORARY TABLE IF EXISTS tmp.priority;
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CREATE TEMPORARY TABLE tmp.priority
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ENGINE = MEMORY
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SELECT itemTagId, MaxPriority
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FROM (SELECT it.id itemTagId, priorityChange.MaxPriority, i.id
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FROM vn.itemTag it
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JOIN vn.item i ON i.id = it.itemFk
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JOIN vn.itemType ity ON ity.id = i.typeFk
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JOIN (SELECT it.itemFk, max(it.priority) + 1 as MaxPriority
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FROM vn.itemTag it
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GROUP BY it.`itemFk`
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) priorityChange ON priorityChange.itemFk = i.id
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JOIN(SELECT it.itemFk,it.priority, min(it.id) as minId
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FROM vn.itemTag it
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GROUP BY it.`itemFk`,it.`priority`
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) minId ON minId.itemFk = i.id
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AND minId.priority = it.priority
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WHERE i.isActive
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GROUP BY it.itemFk, it.priority
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HAVING COUNT(it.priority) > 1)sub
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GROUP BY sub.id;
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SET @isTriggerDisabled := TRUE;
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UPDATE vn.itemTag it
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JOIN tmp.priority tmp ON tmp.itemTagId = it.id
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SET it.priority = tmp.MaxPriority;
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SET @isTriggerDisabled := FALSE;
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DROP TEMPORARY TABLE IF EXISTS tmp.priority;
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ALTER TABLE `vn`.`itemTag`
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ADD UNIQUE INDEX `itemTagItemPriority` (`itemFk` ASC, `priority` ASC);
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