perf(query): 优化后台手机号精确查询
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@@ -0,0 +1,9 @@
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-- +goose Up
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-- 后台返利流水按完整被邀请人手机号搜索时,先经 users(phone) 解析 ID,
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-- 再由该索引定位流水,避免回退为用户表与流水表的跨表全扫描。
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ALTER TABLE invitation_rebate_ledgers
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ADD KEY idx_invitation_rebate_invitee (invitee_id, settled_at);
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-- +goose Down
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ALTER TABLE invitation_rebate_ledgers
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DROP KEY idx_invitation_rebate_invitee;
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