23 lines
887 B
SQL
23 lines
887 B
SQL
-- AlterTable
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ALTER TABLE `website_event` ADD COLUMN `visit_id` VARCHAR(36) NULL;
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UPDATE `website_event` we
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JOIN (SELECT DISTINCT
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s.session_id,
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s.visit_time,
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BIN_TO_UUID(RANDOM_BYTES(16) & 0xffffffffffff0fff3fffffffffffffff | 0x00000000000040008000000000000000) uuid
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FROM (SELECT DISTINCT session_id,
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DATE_FORMAT(created_at, '%Y-%m-%d %H:00:00') visit_time
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FROM `website_event`) s) a
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ON we.session_id = a.session_id and DATE_FORMAT(we.created_at, '%Y-%m-%d %H:00:00') = a.visit_time
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SET we.visit_id = a.uuid
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WHERE we.visit_id IS NULL;
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ALTER TABLE `website_event` MODIFY `visit_id` VARCHAR(36) NOT NULL;
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-- CreateIndex
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CREATE INDEX `website_event_visit_id_idx` ON `website_event`(`visit_id`);
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-- CreateIndex
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CREATE INDEX `website_event_website_id_visit_id_created_at_idx` ON `website_event`(`website_id`, `visit_id`, `created_at`);
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